Inline Centrifugal Blowers

Adjustable Motor Base

The Arrangement 9is equipped with a heavy-duty motor base designed to accept a standard NEMA frame motor. This base is pivoted at one end for easy, accurate belt adjustment.

Conversion Vanes

The aerodynamically designed conversion vane system not only straightens the airflow, but also assures turbulent free flow at the discharge which minimizes noise.

Note: Due to size limitations, conversion vanes are not included on size C1050. It is suggested that straightening vanes be added to duct immediately following discharge

Wheels

Centrifanin-line centrifugal units utilize airfoil bladed wheels in all sizes 27" wheel diameter and above. The flat backward curve wheel is utilized in sizes 241/2" wheel diameter and below. The airfoil wheels have been designed to produce ultra high efficiency over a broad performance range with extremely low sound generation. Hollow heavy gauge airfoil blades, aerodynamically engineered, are die formed in one piece and welded at the trailing edge. Blades are then welded in special jigs to a spun inlet section and a heavy-duty back-plate. Rugged cast iron hubs are used, with bore, keyways, and concentricity machined to close tolerances. The CANADA BLOWER Inline Centrifugal Blower Fans airfoil bladed wheel represents the ultimate in centrifugal wheel construction and is designed for optimum trouble-free performance and longevity

See table on page 7 for the type bearings used for each unit. Also listed are bearings available for 400,000 average life hours (AFBMA-L₅₀).

CANADA BLOWER Inline Centrifugal Blower Fans reserves the right to change bearings of equal ratings

Rugged heavy gauge steel tubular housings containing curved conversion vanes are all welded. All sizes are furnished with flanged inlet and outlet. Inner cylinder and belt duct shield bearings and drive from the airstream. Standard units are furnished with an integral adjustable motor base in Arrangement No. 9. For still more versatility, Arrangement No. 1 is available, in which the motor is located adjacent to the fan housing on a separate adjustable base and the entire assembly mounted on a common base. Arrangement No. 4, direct drive, is also available in Size C3650 and smaller.

Theperformance ratings in this catalog result from test of standard equipment without accessories in place. The combining of several of the accessory items in the air stream may result in variations in air delivery from that shown in the performance tables. Where application is critical and/or unusual, it is recommended that you contact your local NIS-CO representative for engineering assistance in selection of accessory equipment.

Roof Fan

Sizes C1220 through C4900 are available for roof mounting by using a curb cap and stack hood with built in butterfly damper. Maximum velocity through butterfly damper is 3200 FPM.

Weatherproof Drive Cover Belt Guard

Drive covers as shown can be Heavy gauge metal guards are furnished when required to completely furnished for personnel protection

Thein-line centrifugal	Standard construction for the	are also available. Contact the factory
Inline Centrifugal Blower Fans are manufactured to AMCA	Centrifanis: steel housing, bearing	for pricing on special items or unusual
standard wheel diameters in sizes	support, wheels and shaft. Special	requirements.
C1050 throug C4900, as shown below	materials, such as aluminum,
in the material specification chart.	stainless steel or special coatings
CentrifansClass I	CentrifansClass II

FAN SIZE	HOUSING BAND	BEARING HOUSING	ANGLE FLANGE	SHAFT DIA.	100,000 HOURS 400,000 HOURS BEARING
C1050	12 Ga.	16 Ga.	1 X 12 Ga.	1	A	C
C1220	12 Ga.	16 Ga.	1 X 12 Ga.	1	A	C
C1350	12 Ga.	16 Ga.	1 X 12 Ga.	1	A	C
C1500	12 Ga.	14 Ga.	1 X 12 Ga.	1	A	C
C1650	12 Ga.	14 Ga.	1 X 12 Ga.	1	A	C
C1820	12 Ga.	14 Ga.	1 X 12 Ga.	13/16	A	C
C2000	10 Ga.	12 Ga.	11/4 X 10 Ga.	13/16	A	C
C2220	10 Ga.	12 Ga.	11/4 X 10 Ga.	13/16	A	C
C2450	10 Ga.	12 Ga.	11/4 X 10 Ga.	17/16	A	C
C2700	10 Ga.	12 Ga.	11/4 X 10 Ga.	111/16	A	C
C3000	10 Ga.	12 Ga.	11/4 X 10 Ga.	111/16	A	C
C3300	12 Ga.	12 Ga.	2 X 2 X 3/16	115/16	A	C
C3650	12 Ga.	12 Ga.	2 X 2 X 3/16	23/16	B	C
C4020	12 Ga.	12 Ga.	21/2 X21/2 X 3/16	23/16	C	D
C4450	12 Ga.	12 Ga.	21/2 X21/2 X 3/16	23/16	C	D
C4900	10 Ga.	10 Ga.	21/2 X21/2 X 3/16	27/16	C	D

FAN SIZE	HOUSING BAND	BEARING HOUSING	ANGLE FLANGE	SHAFT DIA.	100,000 HOURS 400,000 HOURS BEARING
C1050	12 Ga.	16 Ga.	1 X 12 Ga.	1	A	C
C1220	12 Ga.	16 Ga.	1 X 12 Ga.	13/16	A	C
C1350	12 Ga.	16 Ga.	1 X 12 Ga.	13/16	A	C
C1500	12 Ga.	14 Ga.	1 X 12 Ga.	13/16	A	C
C1650	12 Ga.	14 Ga.	1 X 12 Ga.	17/16	A	C
C1820	12 Ga.	14 Ga.	1 X 12 Ga.	17/16	A	D
C2000	10 Ga.	12 Ga.	11/4 X 10 Ga.	17/16	C	D
C2220	10 Ga.	12 Ga.	11/4 X 10 Ga.	111/16	B	D
C2450	10 Ga.	12 Ga.	11/4 X 10 Ga.	111/16	B	D
C2700	10 Ga.	12 Ga.	11/4 X 10 Ga.	115/16	C	D
C3000	10 Ga.	12 Ga.	11/4 X 10 Ga.	115/16	C	D
C3300	12 Ga.	12 Ga.	2 X 2 X 3/16	23/16	C	D
C3650	12 Ga.	12 Ga.	2 X 2 X 3/16	23/16	C	D
C4020	12 Ga.	12 Ga.	21/2 X21/2 X 3/16	27/16	C	D
C4450	12 Ga.	12 Ga.	21/2 X21/2 X 3/16	211/16	C	D
C4900	10 Ga.	10 Ga.	21/2 X21/2 X 3/16	215/16	C	D

TIP SPEED (FPM) = 2.749 x RPM OUTLET Diameter = 141/8" MAX. HP = .0408{Area = 1.087 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 101/2" INLET Diameter = 141/8" MAX. RPM{ Area = 1.087 Ft.2 CL.1 4166

VOL.	OUTLET VEL.	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
435	400	1139	0.06	1403	0.10	1637	0.15	1851	0.20	—	—	—	—	—	—	—	—	—	—	—	—
544	500	1288	0.09	1522	0.14	1729	0.19	1922	0.25	2102	0.31	2273	0.38	—	—	—	—	—	—	—	—
652	600	1446	0.12	1661	0.18	1848	0.24	2022	0.31	2186	0.37	2343	0.45	2638	0.60	2912	0.78	—	—	—	—
761	700	1613	0.17	1811	0.24	1984	0.31	2143	0.38	2294	0.45	2438	0.53	2711	0.69	2968	0.87	3211	1.07	3442	1.28
870	800	1788	0.23	1968	0.31	2130	0.39	2279	0.46	2419	0.54	2553	0.63	2807	0.80	3046	0.99	3275	1.19	3493	1.40
978	900	1971	0.31	2130	0.39	2284	0.48	2424	0.57	2556	0.65	2681	0.74	2919	0.93	3144	1.13	3359	1.34	3565	1.56
1087	1000	2157	0.41	2298	0.49	2442	0.59	2576	0.69	2701	0.78	2820	0.88	3044	1.08	3256	1.29	3459	1.51	3654	1.74
1196	1100	2342	0.52	2473	0.62	2605	0.72	2733	0.82	2852	0.93	2966	1.04	3179	1.25	3380	1.48	3572	1.71	3757	1.95
1304	1200	2527	0.65	2653	0.76	2773	0.87	2893	0.98	3008	1.10	3117	1.21	3321	1.45	3513	1.68	3696	1.93	3873	2.18
1413	1300	2715	0.81	2838	0.93	2945	1.04	3057	1.16	3167	1.29	3272	1.41	3469	1.66	3653	1.92	3828	2.18	3997	2.44
1522	1400	2911	1.00	3024	1.12	3123	1.24	3226	1.37	3330	1.50	3431	1.63	3621	1.91	3799	2.18	3968	2.45	4129	2.73
1631	1500	3109	1.21	3209	1.34	3305	1.47	3399	1.60	3496	1.74	3593	1.88	3777	2.17	3949	2.46	4112	2.75	4268	3.05
1739	1600	3288	1.43	3394	1.59	3490	1.73	3576	1.86	3666	2.01	3758	2.15	3935	2.46	4102	2.77	4261	3.08	4412	3.40
1848	1700	3473	1.72	3579	1.86	3676	2.02	3758	2.16	3841	2.31	3926	2.46	4096	2.78	4259	3.11	4413	3.44	4560	3.77

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
870	800	3703	1.63	3905	1.87	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
978	900	3764	1.79	3956	2.03	4143	2.29	4324	2.56	4500	2.83	—	—	—	—	—	—	—	—	—	—
1087	1000	3843	1.98	4026	2.23	4204	2.49	4377	2.76	4546	3.04	—	—	—	—	—	—	—	—	—	—
1196	1100	3937	2.20	4111	2.46	4281	2.72	4447	3.00	4608	3.28	—	—	—	—	—	—	—	—	—	—
1304	1200	4044	2.44	4210	2.71	4372	2.99	4531	3.27	4686	3.56	—	—	—	—	—	—	—	—	—	—
1413	1300	4161	2.71	4320	2.99	4475	3.28	4627	3.58	—	—	—	—	—	—	—	—	—	—	—	—
1522	1400	4286	3.02	4439	3.31	4588	3.61	—	—	—	—	—	—	—	—	—	—	—	—	—	—
1631	1500	4419	3.35	4566	3.65	4709	3.96	—	—	—	—	—	—	—	—	—	—	—	—	—	—
1739	1600	4558	3.71	4699	4.03	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
1848	1700	4701	4.11	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 3.207 x RPM OUTLET Diameter = 169/16" MAX. HP = .1099{Area = 1.50 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 121/4" INLET Diameter = 169/16" MAX. RPM{ Area = 1.50 Ft.2 CL.1 3273

VOL.	OUTLET VEL.	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
600	400	793	0.05	1036	0.10	1248	0.16	—	—	—	—	—	—	—	—	—	—	—	—	—	—
750	500	875	0.07	1080	0.12	1272	0.19	1448	0.26	1609	0.33	—	—	—	—	—	—	—	—	—	—
900	600	975	0.10	1147	0.16	1316	0.22	1477	0.30	1629	0.38	1771	0.46	—	—	—	—	—	—	—	—
1050	700	1086	0.14	1231	0.20	1379	0.27	1524	0.34	1663	0.43	1797	0.52	2046	0.72	2274	0.93	—	—	—	—
1200	800	1201	0.19	1329	0.25	1457	0.33	1587	0.41	1714	0.49	1837	0.59	2072	0.79	2292	1.02	2496	1.26	—	—
1350	900	1318	0.25	1435	0.32	1548	0.40	1663	0.48	1778	0.57	1891	0.67	2110	0.88	2319	1.11	2516	1.36	2702	1.63
1500	1000	1439	0.32	1547	0.40	1648	0.49	1751	0.57	1854	0.67	1958	0.77	2161	0.99	2357	1.23	2545	1.48	2724	1.75
1650	1100	1563	0.42	1662	0.50	1755	0.59	1847	0.68	1941	0.78	2035	0.88	2222	1.11	2406	1.35	2584	1.62	2755	1.90
1800	1200	1692	0.53	1778	0.62	1866	0.71	1951	0.81	2036	0.91	2121	1.02	2294	1.25	2465	1.50	2633	1.77	2796	2.06
1950	1300	1824	0.66	1897	0.75	1980	0.85	2059	0.95	2137	1.06	2216	1.17	2375	1.41	2534	1.67	2691	1.95	2846	2.24
2100	1400	1954	0.81	2017	0.90	2096	1.01	2171	1.12	2244	1.23	2316	1.35	2463	1.59	2611	1.86	2758	2.14	2904	2.44
2250	1500	2082	0.97	2141	1.07	2214	1.19	2285	1.31	2354	1.43	2421	1.55	2557	1.80	2695	2.07	2833	2.36	2971	2.67
2400	1600	2211	1.17	2267	1.27	2333	1.39	2401	1.52	2467	1.64	2530	1.77	2657	2.03	2786	2.31	2915	2.61	3044	2.92
2550	1700	2349	1.40	2397	1.49	2453	1.61	2518	1.75	2582	1.88	2642	2.02	2762	2.29	2882	2.58	3003	2.88	3125	3.20
2700	1800	2473	1.63	2528	1.75	2576	1.86	2637	2.00	2698	2.15	2756	2.29	2870	2.58	2982	2.87	3096	3.19	3211	3.51

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1500	1000	2896	2.04	3060	2.34	3218	2.65	—	—	—	—	—	—	—	—	—	—	—	—	—	—
1650	1100	2921	2.19	3081	2.50	3234	2.82	3382	3.15	3525	3.49	—	—	—	—	—	—	—	—	—	—
1800	1200	2955	2.36	3108	2.68	3257	3.00	3402	3.34	3542	3.69	3678	4.05	3809	4.42	3937	4.80	—	—	—	—
1950	1300	2997	2.55	3144	2.87	3288	3.21	3428	3.56	3564	3.92	3697	4.29	3826	4.67	3952	5.05	—	—	—	—
2100	1400	3048	2.76	3189	3.09	3327	3.43	3462	3.79	3594	4.16	3723	4.53	3849	4.92	3972	5.32	—	—	—	—
2250	1500	3107	2.99	3241	3.33	3373	3.68	3503	4.04	3630	4.42	3755	4.81	3878	5.20	3998	5.61	—	—	—	—
2400	1600	3173	3.25	3301	3.60	3427	3.96	3552	4.33	3674	4.71	3795	5.10	3913	5.50	4030	5.92	—	—	—	—
2550	1700	3247	3.54	3368	3.89	3488	4.26	3607	4.63	3725	5.02	3841	5.42	3955	5.83	4068	6.26	—	—	—	—
2700	1800	3326	3.86	3441	4.22	3556	4.59	3669	4.97	3782	5.37	3894	5.77	4004	6.19	—	—	—	—	—	—
2850	1900	3411	4.20	3520	4.57	3629	4.95	3738	5.34	3846	5.74	3953	6.15	4059	6.58	—	—	—	—	—	—
3000	2000	3501	4.58	3605	4.96	3708	5.34	3812	5.74	3915	6.15	4018	6.57	—	—	—	—	—	—	—	—
3300	2200	3694	5.45	3788	5.83	3881	6.23	3976	6.64	4070	7.06	—	—	—	—	—	—	—	—	—	—
3600	2400	3901	6.46	3986	6.86	4071	7.27	—	—	—	—	—	—	—	—	—	—	—	—	—	—

TIP SPEED (FPM) = 3.534 x RPM OUTLET Diameter = 183/8" MAX. HP = .1787{Area = 1.84 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 131/2" INLET Diameter = 183/8" MAX. RPM{ Area = 1.84 Ft.2 CL.1 2871

VOL.	OUTLET VEL.	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
736	400	720	0.06	940	0.12	1132	0.19	—	—	—	—	—	—	—	—	—	—	—	—	—	—
920	500	794	0.09	980	0.15	1154	0.23	1314	0.31	1460	0.40	—	—	—	—	—	—	—	—	—	—
1104	600	885	0.12	1041	0.19	1195	0.27	1340	0.36	1478	0.46	1607	0.56	—	—	—	—	—	—	—	—
1288	700	985	0.17	1117	0.24	1251	0.33	1383	0.42	1509	0.52	1631	0.63	1857	0.87	2064	1.13	—	—	—	—
1472	800	1090	0.23	1206	0.31	1323	0.40	1440	0.49	1555	0.60	1667	0.71	1880	0.96	2079	1.23	2265	1.53	—	—
1656	900	1196	0.30	1302	0.39	1405	0.48	1509	0.59	1613	0.70	1716	0.81	1915	1.07	2104	1.35	2283	1.65	2452	1.97
1840	1000	1306	0.39	1403	0.49	1495	0.59	1589	0.70	1683	0.81	1776	0.93	1961	1.20	2139	1.49	2309	1.80	2472	2.13
2024	1100	1418	0.50	1508	0.61	1592	0.72	1676	0.83	1761	0.95	1847	1.07	2017	1.35	2183	1.64	2344	1.96	2500	2.30
2208	1200	1535	0.64	1614	0.75	1693	0.86	1770	0.98	1847	1.10	1925	1.23	2082	1.52	2237	1.82	2389	2.15	2537	2.50
2392	1300	1655	0.80	1721	0.91	1797	1.03	1868	1.16	1939	1.29	2010	1.42	2155	1.71	2299	2.03	2442	2.36	2582	2.72
2576	1400	1773	0.98	1831	1.09	1902	1.23	1970	1.36	2036	1.50	2102	1.64	2235	1.93	2369	2.26	2503	2.60	2635	2.97
2760	1500	1889	1.18	1942	1.30	2009	1.44	2074	1.59	2136	1.73	2197	1.88	2320	2.19	2445	2.52	2571	2.87	2696	3.24
2944	1600	2006	1.42	2057	1.54	2117	1.68	2179	1.84	2238	2.00	2296	2.15	2411	2.47	2528	2.81	2645	3.17	2763	3.55
3128	1700	2131	1.70	2175	1.82	2226	1.96	2285	2.12	2343	2.29	2398	2.45	2506	2.78	2615	3.13	2725	3.50	2835	3.89
3312	1800	2244	1.98	2294	2.13	2337	2.26	2393	2.43	2448	2.61	2501	2.78	2604	3.13	2706	3.49	2809	3.87	2914	4.27

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1840	1000	2628	2.48	2777	2.84	2920	3.21	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2024	1100	2651	2.66	2795	3.04	2935	3.42	3069	3.82	3199	4.24	3324	4.66	—	—	—	—	—	—	—	—
2208	1200	2681	2.87	2821	3.25	2956	3.65	3087	4.06	3214	4.49	3337	4.92	3457	5.37	3573	5.83	—	—	—	—
2392	1300	2719	3.10	2853	3.49	2984	3.90	3111	4.32	3234	4.76	3355	5.20	3472	5.67	3586	6.14	—	—	—	—
2576	1400	2766	3.35	2894	3.75	3019	4.17	3141	4.60	3261	5.05	3378	5.51	3493	5.98	3604	6.46	—	—	—	—
2760	1500	2819	3.64	2941	4.05	3061	4.47	3179	4.91	3294	5.37	3408	5.84	3519	6.32	3628	6.81	—	—	—	—
2944	1600	2880	3.95	2995	4.37	3110	4.80	3223	5.25	3334	5.72	3443	6.19	3551	6.69	3657	7.19	—	—	—	—
3128	1700	2946	4.30	3056	4.73	3165	5.17	3273	5.63	3380	6.10	3485	6.59	3589	7.08	3692	7.60	—	—	—	—
3312	1800	3018	4.68	3123	5.12	3226	5.57	3330	6.04	3432	6.52	3533	7.01	3633	7.52	—	—	—	—	—	—
3496	1900	3095	5.11	3194	5.55	3293	6.01	3392	6.48	3490	6.97	3587	7.47	3683	7.99	—	—	—	—	—	—
3680	2000	3177	5.57	3271	6.02	3365	6.48	3459	6.97	3553	7.46	3646	7.98	—	—	—	—	—	—	—	—
4048	2200	3352	6.62	3437	7.08	3522	7.57	3607	8.07	3693	8.58	—	—	—	—	—	—	—	—	—	—
4416	2400	3540	7.84	3617	8.33	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 3.927 x RPM OUTLET Diameter = 203/8" MAX. HP = .2937{Area = 2.26 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 15" INLET Diameter = 203/8" MAX. RPM{ Area = 2.26 Ft.2 CL.1 2458

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1356 1582 1808	600 700 800	778 865 958	0.14 0.19 0.26	921 985 1061	0.22 0.27 0.35	1067 1110 1168	0.32 0.37 0.45	1207 1234 1277	0.43 0.49 0.57	1339 1355 1386	0.55 0.62 0.70	1472 1493 —	0.76 0.84 —	1698 —	1.16 —	— —	— —	— — —	— — —	— — —	— — —
2034 2260 2486	900 1000 1100	1054 1153 1255	0.34 0.45 0.58	1144 1233 1325	0.44 0.55 0.68	1238 1316 1400	0.54 0.66 0.80	1333 1400 1476	0.66 0.78 0.93	1431 1487 1553	0.80 0.92 1.07	1528 1575 1632	0.95 1.07 1.22	1718 1749 1791	1.27 1.40 1.55	1900 1919 1949	1.63 1.77 1.93	2083 2103	2.17 2.33	2240 2253 —	2.59 2.77 —
2712 2938 3164	1200 1300 1400	1358 1459 1560	0.73 0.90 1.10	1420 1517 1617	0.84 1.02 1.23	1488 1579 1672	0.96 1.15 1.37	1557 1642 1731	1.10 1.29 1.52	1627 1706 1790	1.24 1.44 1.67	1698 1771 1849	1.39 1.60 1.83	1843 1903 1970	1.73 1.94 2.18	1989 2037 2094	2.11 2.32 2.57	2133 2172 2219	2.52 2.74 2.99	2275 2305 2344	2.96 3.19 3.44
3390 3616 3842	1500 1600 1700	1660 1763 1869	1.32 1.58 1.89	1718 1821 1923	1.48 1.76 2.07	1768 1866 1965	1.62 1.90 2.22	1822 1915 2011	1.77 2.06 2.38	1877 1966 2058	1.93 2.22 2.55	1932 2018 2107	2.10 2.40 2.73	2044 2122 2204	2.45 2.76 3.11	2158 2228 2303	2.84 3.16 3.51	2274 2336 2403	3.27 3.59 3.95	2391 2445 2505	3.73 4.05 4.41
4068 4294	1800 1900	1976 2081	2.23 2.60	2025 2126	2.41 2.79	2067 2169	2.57 2.97	2108 2207	2.74 3.14	2152 2247	2.92 3.32	2197 2290	3.10 3.51	2289 2376	3.49 3.92	2381 2463	3.91 4.34	2475 2552	4.35 4.79	2571 2641	4.82 5.27
4520 4972	2000 2200	2184 2408	3.00 4.02	2226 2429	3.20 4.14	2271 2475	3.41 4.41	2307 2510	3.58 4.61	2344 2543	3.77 4.80	2384 2577	3.96 5.00	2466 2650	4.38 5.44	2548 2724	4.82 5.91	2631 2799	5.28 6.39	2716 2875	5.76 6.89

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2712	1200	2413	3.43	2548	3.92	2677	4.43	—	—	—	—	—	—	—	—	—	—	—	—	—	—
2938	1300	2437	3.66	2565	4.16	2691	4.68	2813	5.22	2931	5.77	—	—	—	—	—	—	—	—	—	—
3164	1400	2468	3.92	2591	4.43	2711	4.96	2829	5.51	2944	6.08	3056	6.67	3166	7.26	—	—	—	—	—	—
3390	1500	2508	4.21	2623	4.73	2738	5.26	2851	5.83	2962	6.41	3071	7.00	3178	7.62	3282	8.25	3385	8.89	—	—
3616	1600	2554	4.54	2664	5.06	2772	5.60	2880	6.17	2987	6.76	3092	7.37	3195	7.99	3297	8.64	3397	9.29	3495	9.96
3842	1700	2608	4.91	2711	5.43	2814	5.98	2916	6.55	3018	7.14	3119	7.76	3218	8.40	3317	9.05	3414	9.72	3509	10.40
4068	1800	2667	5.32	2764	5.84	2861	6.39	2959	6.97	3056	7.57	3152	8.19	3247	8.84	3342	9.50	3436	10.18	3529	10.87
4294	1900	2732	5.77	2823	6.30	2915	6.86	3007	7.44	3099	8.04	3191	8.67	3283	9.31	3374	9.98	3464	10.67	3553	11.37
4520	2000	2801	6.27	2887	6.80	2974	7.36	3061	7.95	3149	8.56	3237	9.19	3324	9.84	3411	10.51	3498	11.20	3584	11.91
4972	2200	2951	7.41	3028	7.96	3106	8.53	3185	9.12	3264	9.74	3343	10.38	3423	11.04	3502	11.72	3582	12.42	3661	13.14
5424	2400	3113	8.76	3183	9.33	3253	9.91	3324	10.51	3395	11.14	3467	11.78	3540	12.45	3613	13.14	3685	13.85	—	—
5876	2600	3284	10.33	3348	10.91	3412	11.51	3476	12.13	3541	12.77	3607	13.42	3673	14.10	—	—	—	—	—	—
6328	2800	3462	12.12	3520	12.73	3579	13.35	3639	13.99	3698	14.64	—	—	—	—	—	—	—	—	—	—

TIP SPEED (FPM) = 4.320 x RPM OUTLET Diameter = 223/8" MAX. HP = .4730{Area = 2.73 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 161/2" INLET Diameter = 223/8" MAX. RPM{ Area = 2.73 Ft.2 CL.1 2402

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1638 1911 2184	600 700 800	708 787 871	0.17 0.23 0.31	838 896 964	0.26 0.33 0.42	970 1009 1062	0.38 0.45 0.54	1097 1122 1161	0.52 0.59 0.69	1217 1232 1260	0.67 0.75 0.85	— 1338 1358	— 0.92 1.02	— — 1544	— — 1.41	— — —	— — —	— — —	— — —	— — —	— — —
2457 2730 3003	900 1000 1100	958 1049 1141	0.41 0.54 0.70	1040 1121 1204	0.53 0.66 0.82	1125 1196 1272	0.66 0.80 0.97	1212 1273 1341	0.80 0.95 1.12	1301 1352 1412	0.97 1.11 1.29	1389 1431 1483	1.15 1.29 1.47	1562 1590 1628	1.54 1.69 1.88	1727 1745 1772	1.97 2.14 2.33	— 1894 1912	— 2.62 2.82	— 2036 2048	— 3.13 3.35
3276 3549 3822	1200 1300 1400	1234 1327 1418	0.88 1.09 1.33	1291 1379 1470	1.01 1.23 1.49	1352 1435 1520	1.16 1.39 1.66	1415 1493 1573	1.33 1.56 1.83	1479 1551 1627	1.50 1.74 2.02	1543 1610 1681	1.68 1.93 2.21	1675 1730 1791	2.09 2.35 2.64	1808 1852 1904	2.55 2.81 3.10	1939 1975 2018	3.05 3.31 3.61	2068 2096 2131	3.59 3.86 4.16
4095 4368 4641	1500 1600 1700	1509 1603 1699	1.60 1.92 2.28	1562 1655 1748	1.79 2.13 2.50	1607 1696 1787	1.96 2.30 2.68	1656 1741 1828	2.14 2.49 2.88	1706 1788 1871	2.34 2.69 3.09	1756 1834 1915	2.54 2.90 3.31	1858 1929 2003	2.97 3.34 3.76	1962 2025 2093	3.44 3.82 4.25	2067 2123 2185	3.96 4.34 4.78	2174 2223 2277	4.51 4.90 5.34
4914 5187	1800 1900	1796 1892	2.69 3.14	1841 1932	2.92 3.37	1879 1972	3.12 3.60	1916 2006	3.31 3.80	1956 2043	3.53 4.02	1998 2082	3.75 4.25	2081 2160	4.23 4.74	2165 2239	4.73 5.25	2250 2320	5.26 5.80	2337 2401	5.83 6.37
5460 6006	2000 2200	1985 2189	3.63 4.87	2023 2208	3.87 5.01	2065 2250	4.13 5.33	2097 2282	4.33 5.58	2131 2312	4.56 5.81	2167 2343	4.80 6.05	2242 2409	5.30 6.59	2317 2477	5.83 7.15	2392 2545	6.39 7.73	2469 2613	6.97 8.34

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
3276	1200	2194	4.15	2316	4.74	2434	5.36	—	—	—	—	—	—	—	—	—	—	—	—	—	—
3549	1300	2215	4.43	2332	5.04	2446	5.67	2557	6.32	2665	6.99	—	—	—	—	—	—	—	—	—	—
3822	1400	2244	4.75	2355	5.36	2464	6.00	2571	6.67	2676	7.35	2778	8.07	2878	8.79	—	—	—	—	—	—
4095	1500	2280	5.10	2385	5.72	2489	6.37	2592	7.05	2693	7.75	2792	8.48	2889	9.22	2984	9.98	3077	10.75	—	—
4368	1600	2322	5.49	2421	6.12	2520	6.78	2618	7.47	2715	8.18	2811	8.91	2905	9.67	2997	10.45	3088	11.24	3177	12.06
4641	1700	2371	5.94	2464	6.57	2558	7.23	2651	7.93	2743	8.65	2835	9.39	2926	10.16	3015	10.95	3103	11.76	3190	12.59
4914	1800	2425	6.43	2513	7.07	2601	7.74	2690	8.43	2778	9.16	2865	9.91	2952	10.69	3038	11.49	3124	12.31	3208	13.15
5187	1900	2483	6.98	2566	7.62	2650	8.29	2734	9.00	2818	9.73	2901	10.49	2984	11.27	3067	12.08	3149	12.91	3230	13.76
5460	2000	2546	7.59	2625	8.23	2704	8.91	2783	9.62	2863	10.35	2942	11.12	3022	11.90	3101	12.72	3180	13.56	3258	14.42
6006	2200	2683	8.97	2753	9.63	2824	10.32	2895	11.04	2967	11.78	3039	12.55	3111	13.35	3184	14.18	3256	15.03	3328	15.90
6552	2400	2830	10.60	2893	11.28	2957	11.99	3022	12.72	3087	13.47	3152	14.26	3218	15.07	3284	15.90	3350	16.76	3417	17.64
7098	2600	2986	12.50	3043	13.20	3102	13.93	3160	14.68	3219	15.45	3279	16.24	3339	17.06	3399	17.91	3460	18.77	—	—
7644	2800	3147	14.67	3200	15.40	3254	16.15	3308	16.93	3362	17.72	3417	18.53	3472	19.36	—	—	—	—	—	—

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 4.778 x RPM OUTLET Diameter = 2411/16" MAX. HP = .7279{Area = 3.32 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 181/4" INLET Diameter = 2411/16" MAX. RPM{ Area = 3.32 Ft.2 CL.1 2069

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1992 2324 2656	600 700 800	670 748 828	0.22 0.30 0.41	778 839 910	0.32 0.42 0.54	894 935 991	0.46 0.55 0.68	1009 1034 1075	0.62 0.71 0.84	1121 1134 1162	0.80 0.90 1.02	— 1231 1250	— 1.10 1.22	— — 1421	— — 1.67	— — —	— — —	— — —	— — —	— — —	— — —
2988 3320 3652	900 100 1100	909 992 1076	0.54 0.70 0.90	987 1066 1145	0.69 0.87 1.09	1057 1130 1207	0.84 1.03 1.26	1130 1194 1264	1.00 1.20 1.44	1205 1259 1322	1.18 1.38 1.63	1282 1327 1382	1.38 1.58 1.83	1437 1466 1506	1.84 2.04 2.29	1589 1605 1633	2.35 2.56 2.80	1734 1742 1760	2.91 3.12 3.37	— 1875 1885	— 3.73 3.99
3984 4316 4648	1200 1300 1400	1162 1248 1336	1.13 1.40 1.72	1226 1307 1390	1.33 1.62 1.94	1285 1365 1445	1.53 1.84 2.18	1339 1417 1496	1.72 2.05 2.41	1392 1466 1542	1.91 2.25 2.63	1445 1514 1587	2.12 2.46 2.86	1556 1614 1678	2.58 2.92 3.33	1671 1718 1773	3.10 3.44 3.85	1787 1824 1870	3.67 4.01 4.42	1903 1932 1969	4.29 4.64 5.04
4980 5312 5644	1500 1600 1700	1425 1515 1603	2.08 2.50 2.96	1474 1560 1645	2.32 2.74 3.21	1526 1608 1691	2.57 3.01 3.49	1575 1655 1736	2.82 3.82 3.79	1621 1700 1780	3.07 3.54 4.07	1664 1741 1820	3.30 3.80 4.35	1748 1821 1896	3.79 4.31 4.88	1834 1900 1970	4.31 4.84 5.43	1923 1982 2046	4.88 5.42 6.02	2014 2065 2123	5.51 6.04 6.64
5976 6308	1800 1900	1687 1772	3.45 3.99	1732 1819	3.74 4.34	1774 1859	4.04 4.64	1817 1900	4.34 4.96	1860 1940	4.65 5.29	1900 1980	4.95 5.61	1974 2052	5.52 6.22	2044 2120	6.09 6.82	2114 2186	6.69 7.43	2186 2253	7.32 8.07
6640 7304	2000 2200	1876 2045	4.75 6.17	1907 2087	4.99 6.54	1945 2117	5.31 6.84	1983 2152	5.64 7.20	2022 2187	5.98 7.57	2060 2222	6.32 7.94	2131 2291	6.98 8.69	2197 2354	7.62 9.41	2260 2414	8.25 10.10	2323 2471	8.90 10.80

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
3984	1200	2018	4.95	2131	5.65	2241	6.38	—	—	—	—	—	—	—	—	—	—	—	—	—	—
4316	1300	2039	5.30	2146	6.01	2250	6.75	2353	7.53	2454	8.33	—	—	—	—	—	—	—	—	—	—
4648	1400	2068	5.71	2168	6.42	2267	7.17	2366	7.95	2462	8.77	2557	9.61	2651	10.48	—	—	—	—	—	—
4980	1500	2106	6.18	2199	6.89	2292	7.64	2385	8.43	2477	9.25	2568	10.10	2658	10.98	2747	11.89	2834	12.82	—	—
5312	1600	2151	6.71	2237	7.42	2325	8.17	2412	8.96	2499	9.79	2586	10.65	2672	11.54	2757	12.46	2841	13.40	2924	14.37
5644	1700	2202	7.31	2283	8.02	2364	8.78	2446	9.57	2528	10.40	2611	11.26	2693	12.15	2774	13.08	2855	14.03	2935	15.01
5976	1800	2259	7.99	2334	8.70	2410	9.45	2487	10.25	2564	11.07	2642	11.94	2720	12.83	2797	13.76	2874	14.72	2951	15.70
6308	1900	2321	8.75	2391	9.46	2462	10.21	2534	11.00	2606	11.83	2680	12.70	2753	13.59	2827	14.52	2900	15.48	2974	16.47
6640	2000	2387	9.58	2452	10.30	2519	11.05	2586	11.85	2654	12.67	2723	13.54	2793	14.43	2862	15.36	2932	16.33	3002	17.32
7304	2200	2528	11.50	2586	12.24	2645	13.00	2704	13.80	2764	14.63	2825	15.49	2887	16.39	2950	17.32	3012	18.28	3076	19.27
7968	2400	2678	13.76	2731	14.53	2784	15.31	2837	16.13	2890	16.96	2945	17.83	3000	18.73	3056	19.67	3112	20.63	3169	21.62
8632	2600	2834	16.36	2883	17.18	2931	18.00	2980	18.84	3028	19.70	3078	20.58	3127	21.49	3177	22.43	—	—	—	—
9296	2800	2991	19.31	3039	20.19	3085	21.07	3130	21.96	3175	22.85	3220	23.75	—	—	—	—	—	—	—	—

TIP SPEED (FPM) = 5.236 x RPM OUTLET Diameter = 275/16" MAX. HP = 1.1533{Area = 4.07 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 20" INLET Diameter = 275/16" MAX. RPM{ Area = 4.07 Ft.2 CL.1 2054

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2442 2849 3256	600 700 800	611 682 755	0.26 0.36 0.49	710 766 831	0.39 0.50 0.65	815 853 904	0.55 0.66 0.81	921 944 981	0.74 0.86 1.01	1022 1035 1061	0.96 1.08 1.23	1123 1140 —	1.32 1.47 —	1296 — —	2.01 — —	— — —	— — —	— — —	— — —	— — —	— — —
3663 4070 4477	900 1000 1100	829 905 982	0.65 0.85 1.08	900 972 1045	0.83 1.05 1.30	965 1031 1101	1.00 1.24 1.52	1031 1089 1154	1.20 1.44 1.73	1100 1149 1207	1.42 1.66 1.95	1170 1211 1261	1.66 1.90 2.20	1311 1338 1374	2.21 2.45 2.74	1450 1465 1490	2.82 3.07 3.37	1583 1590 1606	3.49 3.75 4.05	1711 1720 —	4.48 4.79 —
4884 5291 5698	1200 1300 1400	1060 1139 1219	1.36 1.68 2.06	1119 1193 1269	1.60 1.94 2.33	1173 1246 1319	1.84 2.21 2.62	1222 1293 1365	2.07 2.46 2.90	1270 1337 1407	2.30 2.70 3.16	1319 1382 1449	2.55 2.96 3.43	1420 1473 1532	3.10 3.51 3.99	1525 1568 1617	3.72 4.13 4.62	1631 1665 1706	4.41 4.82 5.31	1737 1763 1796	5.15 5.57 6.05
6105 6512 6919	1500 1600 1700	1301 1383 1463	2.50 3.01 3.56	1345 1423 1501	2.78 3.29 3.86	1392 1467 1543	3.09 3.61 4.20	1437 1511 1584	3.39 3.94 4.55	1479 1551 1624	3.68 4.26 4.89	1518 1589 1661	3.96 4.56 5.22	1595 1661 1730	4.55 5.17 5.87	1673 1734 1798	5.18 5.81 6.52	1754 1808 1867	5.87 6.50 7.23	1837 1885 1937	6.61 7.25 7.98
7326 7733	1800 1900	1539 1617	4.14 4.80	1580 1660	4.50 5.21	1619 1697	4.85 5.58	1658 1734	5.22 5.96	1697 1771	5.59 6.35	1733 1806	5.95 6.74	1801 1872	6.63 7.47	1865 1934	7.32 8.19	1929 1995	8.03 8.92	1995 2056	8.79 9.69
8140 8954	2000 2200	1712 1892	5.70 7.65	1740 1904	6.00 7.85	1775 1932	6.38 8.22	1809 1964	6.77 8.65	1845 1996	7.18 9.09	1880 2028	7.60 9.54	1945 2090	8.39 10.44	2005 2148	9.15 11.30	2062 2202	9.91 12.13	2120 2255	10.69 12.97

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
4884	1200	1842	5.95	1945	6.79	2045	7.67	2142	8.58	—	—	—	—	—	—	—	—	—	—	—	—
5291	1300	1861	6.37	1958	7.22	2054	8.11	2147	9.04	2239	10.01	2329	11.00	—	—	—	—	—	—	—	—
5698	1400	1887	6.86	1979	7.71	2069	8.61	2159	9.55	2247	10.53	2334	11.54	2419	12.59	2502	13.65	—	—	—	—
6105	1500	1922	7.42	2007	8.27	2092	9.17	2176	10.12	2260	11.11	2344	12.13	2426	13.19	2506	14.28	2586	15.40	2664	16.54
6512	1600	1963	8.06	2042	8.91	2121	9.82	2201	10.76	2281	11.76	2360	12.79	2438	13.86	2516	14.96	2593	16.09	2668	17.25
6919	1700	2010	8.78	2083	9.64	2157	10.54	2232	11.49	2307	12.48	2382	13.52	2457	14.59	2531	15.70	2605	16.85	2678	18.02
7326	1800	2062	9.60	2130	10.45	2199	11.35	2269	12.30	2340	13.30	2411	14.34	2482	15.41	2552	16.53	2623	17.68	2693	18.86
7733	1900	2118	10.50	2182	11.36	2246	12.27	2312	13.22	2378	14.21	2445	15.25	2512	16.32	2579	17.44	2646	18.59	2713	19.78
8140	2000	2178	11.51	2238	12.37	2298	13.28	2360	14.23	2422	15.22	2485	16.26	2548	17.34	2612	18.45	2676	19.61	2739	20.80
8954	2200	2307	13.82	2360	14.70	2413	15.62	2467	16.57	2522	17.57	2578	18.61	2635	19.68	2692	20.80	2749	21.96	—	—
9768	2400	2444	16.53	2492	17.45	2540	18.39	2588	19.37	2638	20.37	2687	21.42	2738	22.50	—	—	—	—	—	—
10582	2600	2586	19.65	2631	20.63	2675	21.62	2719	22.63	2763	23.66	—	—	—	—	—	—	—	—	—	—
11396	2800	2730	23.19	2773	24.25	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 5.825 x RPM OUTLET Diameter = 305/16" MAX. HP = 2.0136 {Area = 5.01 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 221/4" INLET Diameter = 305/16" MAX. RPM{ Area = 5.01 Ft.2 CL.1 1706

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
3006 3507 4008	600 700 800	526 585 649	0.29 0.40 0.54	622 665 716	0.46 0.58 0.73	720 749 789	0.68 0.80 0.96	813 833 862	0.91 1.05 1.22	902 914 935	1.17 1.32 1.50	— 992 1007	— 1.62 1.81	— — 1144	— — 2.47	— — —	— — —	— — —	— — —	— — —	— — —
4509 5010 5511	900 1000 1100	714 782 850	0.72 0.94 1.21	773 834 897	0.92 1.16 1.44	836 888 946	1.16 1.40 1.69	900 946 996	1.42 1.67 1.97	966 1004 1049	1.72 1.97 2.28	1031 1063 1102	2.03 2.30 2.61	1158 1180 1209	2.72 3.01 3.34	1280 1294 1315	3.47 3.78 4.13	— 1404 1418	— 4.61 4.99	— — 1518	— — 5.89
6012 6513 7014	1200 1300 1400	919 989 1058	1.52 1.89 2.32	962 1029 1096	1.77 2.15 2.60	1006 1069 1133	2.03 2.43 2.89	1051 1110 1171	2.32 2.73 3.20	1098 1152 1209	2.64 3.05 3.53	1146 1196 1249	2.97 3.40 3.88	1244 1285 1330	3.72 4.15 4.66	1342 1376 1414	4.534.99 5.50	1439 1466 1498	5.415.88 6.42	1534 1555 1582	6.34 6.84 7.39
7515 8016 8517	1500 1600 1700	1128 1197 1267	2.80 3.34 3.95	1164 1232 1302	3.10 3.68 4.33	1199 1265 1332	3.42 4.01 4.67	1234 1298 1363	3.74 4.35 5.03	1269 1331 1394	4.08 4.70 5.39	1305 1364 1425	4.44 5.07 5.78	1380 1433 1489	5.22 5.87 6.59	1457 1504 1555	6.09 6.74 7.48	1535 1577 1622	7.02 7.69 8.44	1614 1651 1691	8.01 8.70 9.49
9018 9519	1800 1900	1336 1407	4.63 5.39	1371 1441	5.05 5.86	1400 1468	5.41 6.23	1429 1496	5.78 6.62	1458 1523	6.17 7.02	1487 1551	5.65 7.43	1547 1607	7.39 8.28	1608 1664	8.30 9.20	1671 1723	9.27 10.19	1736 1783	10.30 11.24
10020 11022	2000 2200	1478 1621	6.25 8.23	1511 1650	6.74 8.75	1537 1676	7.14 9.23	1563 1700	7.54 9.66	1589 1723	7.96 10.11	1616 1747	8.38 10.57	1668 1795	9.27 11.51	1722 1843	10.20 12.49	1777 1892	11.20 13.52	1833 1942	12.26 14.61

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
6012	1200	1626	7.32	1716	8.34	1804	9.40	—	—	—	—	—	—	—	—	—	—	—	—	—	—
6513	1300	1643	7.84	1729	8.88	1813	9.97	1895	11.10	—	—	—	—	—	—	—	—	—	—	—	—
7014	1400	1665	8.41	1747	9.48	1827	10.59	1906	11.75	1983	12.93	2059	14.16	—	—	—	—	—	—	—	—
7515	1500	1692	9.05	1770	10.14	1847	11.28	1922	12.45	1996	13.67	2069	14.92	2141	16.20	2212	17.51	—	—	—	—
8016	1600	1724	9.76	1798	10.87	1871	12.03	1943	13.22	2014	14.46	2084	15.74	2153	17.04	2221	18.39	2289	19.76	2355	21.16
8517	1700	1761	10.54	1830	11.67	1899	12.84	1968	14.06	2036	15.32	2103	16.62	2170	17.95	2236	19.32	2300	20.72	2365	22.15
9018	1800	1801	11.40	1866	12.55	1932	13.74	1997	14.98	2062	16.26	2126	17.58	2190	18.94	2254	20.33	2316	21.75	2378	23.20
9519	1900	1844	12.34	1906	13.51	1968	14.72	2030	15.98	2092	17.28	2154	18.62	2215	20.00	2276	21.41	2336	22.85	2396	24.33
10020	2000	1891	13.38	1949	14.56	2008	15.79	2067	17.06	2126	18.38	2185	19.74	2244	21.14	2302	22.57	2360	24.04	2418	25.54
11022	2200	1993	15.76	2044	16.96	2097	18.22	2150	19.53	2203	20.88	2257	22.27	2311	23.71	2364	25.18	2418	26.69	—	—
12024	2400	2103	18.57	2149	19.80	2196	21.08	2244	22.42	2292	23.79	2341	25.22	2390	26.69	2439	28.19	—	—	—	—
13026	2600	2220	21.85	2262	23.11	2304	24.42	2347	25.78	2391	27.18	2435	28.63	—	—	—	—	—	—	—	—
14028	2800	2342	25.63	2380	26.92	2418	28.26	2458	29.65	—	—	—	—	—	—	—	—	—	—	—	—

TIP SPEED (FPM) = 6.414 x RPM OUTLET Diameter = 331/4" MAX. HP = 3.2502{Area = 6.03 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 241/2" INLET Diameter = 331/4" MAX. RPM{ Area = 6.03 Ft.2 CL.1 1563

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
3618 4221 4824	600 700 800	477 532 589	0.35 0.49 0.66	565 604 651	0.56 0.71 0.89	653 680 716	0.82 0.97 1.17	739 756 783	1.11 1.28 1.48	819 830 849	1.42 1.61 1.82	— 901 914	— 1.96 2.19	— — 1039	— — 2.99	— — —	— — —	— — —	— — —	— — —	— — —
5427 6030 6633	900 1000 1100	649 710 772	0.88 1.14 1.46	702 758 815	1.12 1.40 1.74	759 807 859	1.40 1.70 2.05	818 859 905	1.73 2.03 2.39	877 912 952	2.08 2.39 2.76	936 965 1001	2.46 2.79 3.16	1052 1072 1098	3.30 3.64 4.04	1162 1175 1194	4.20 4.58 5.01	— 1275 1288	— 5.59 6.04	— 1371 1379	— 6.65 7.14
7236 7839 8442	1200 1300 1400	835 898 961	1.85 2.29 2.81	874 934 995	2.15 2.61 3.15	914 971 1029	2.47 2.953.51	955 1008 1063	2.81 3.313.88	997 1046 1098	3.20 3.704.28	1041 1086 1134	3.61 4.124.71	1130 1167 1208	4.51 5.04 5.64	1219 1249 1284	5.50 6.05 6.67	1307 1331 1361	6.56 7.13 7.78	1393 1412 1437	7.68 8.29 8.96
9045 9648 10251	1500 1600 1700	1024 1087 1150	3.39 4.05 4.79	1057 1119 1182	3.764.465.25	1089 1149 1210	4.144.865.66	1120 1179 1238	4.545.276.09	1152 1208 1266	4.955.706.56	1185 1239 1294	5.386.157.00	1253 1301 1352	6.33 7.11 7.99	1323 1366 1412	7.38 8.17 9.07	1394 1432 1473	8.51 9.32 10.23	1466 1499 1536	9.71 10.54 11.47
10854 11457	1800 1900	1214 1277	5.62 6.54	1245 1309	6.137.10	1271 1333	6.567.55	1298 1358	7.018.02	1324 1383	7.488.51	1351 1409	7.959.01	1405 1459	8.96 10.04	1460 1511	10.06 11.16	1518 1565	11.24 12.35	1576 1619	12.49 13.62
12060 13266	2000 2200	1342 1472	7.58 9.98	1372 1498	8.1710.61	1396 1522	8.6611.19	1420 1543	9.1411.72	1443 1565	9.6512.25	1467 1587	10.1612.81	1515 1630	11.23 13.96	1564 1674	12.37 15.15	1614 1718	13.58 16.40	1665 1763	14.87 17.72

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
723678398442	1200 1300 1400	1477 1492 1512	8.87 9.50 10.20	1559 1570 1586	10.1110.77 11.50	1638 1647 1659	11.39 12.09 12.85	— 1721 1731	— 13.45 14.25	— 1794 1801	— 14.86 15.68	— — 1870	— — 17.17	— — 1937	— — 18.69	— — —	— — —	— — —	— — —	— — —	— — —
9045964810251	1500 1600 1700	1537 1566 1599	10.98 11.83 12.78	1607 1633 1662	12.30 13.18 14.15	1677 1699 1725	13.67 14.58 15.57	1745 1764 1787	15.10 16.03 17.05	1813 1829 1849	16.57 17.53 18.58	1879 1893 1910	18.09 19.08 20.15	1944 1956 1970	19.64 20.67 21.77	2009 2017 2030	21.24 22.29 23.43	2071 2078 2089	22.87 23.96 25.12	— 2138 2147	— 25.66 26.86
108541145712060	1800 1900 2000	1635 1675 1717	13.8214.9716.23	1695 1731 1770	15.21 16.38 17.65	1754 1787 1824	16.66 17.85 19.14	1814 1844 1877	18.16 19.37 20.69	1873 1900 1931	19.72 20.95 22.29	1931 1956 1984	21.32 22.57 23.94	1989 2012 2037	22.96 24.24 25.63	2047 2067 2090	24.64 25.96 27.37	2104 2122 2143	26.37 27.71 29.15	2160 2176 2195	28.13 29.50 30.97
1326614472	2200 2400	1810 1910	19.1122.52	1857 1952	20.57 24.01	1904 1995	22.0925.56	1953 2038	23.6727.18	2001 2082	25.3128.85	2050 2126	27.00 30.58	2098 2171	28.74 32.36	2147 2215	30.53 34.18	2196 2260	32.36 36.06	— 2244	— 34.23
1567816884	2600 2800	2016 2127	26.4931.07	2054 2161	28.02 32.64	2092 2196	29.6134.27	2132 2232	31.2535.95	2171 2268	37.68 32.96	— 2212	— 34.71	— 2252	— 36.53	— —	— —	— —	— —	— —	— —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 7.069 x RPM OUTLET Diameter = 365/8" MAX. HP = 3.057{Area = 7.316 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 27" INLET Diameter = 365/8" MAX. RPM{ Area = 7.316 Ft.2 CL.1 1579

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
3658 4390 5121	500 600 700	456 519 585	0.27 0.39 0.54	526 581 640	0.44 0.57 0.75	591 638 691	0.63 0.78 0.97	652 692 740	0.84 1.01 1.22	712 744 787	1.07 1.26 1.48	795 833 —	1.52 1.76 —	893 920 —	2.09 2.36 —	1005 — —	3.01 — —	— — —	— — —	— — —	— — —
5853 6584 7316	800 900 1000	652 719 786	0.73 0.97 1.25	703 768 834	0.97 1.24 1.57	749 810 874	1.21 1.51 1.85	794 851 911	1.48 1.79 2.16	836 890 948	1.76 2.08 2.47	878 929 983	2.05 2.40 2.80	958 1002 1052	2.69 3.06 3.50	1035 1073 1118	3.37 3.78 4.25	1109 1142 1182	4.09 4.54 5.04	1182 1209 1244	4.86 5.33 5.87
8048 8779 9511	1100 1200 1300	853 920 988	1.57 1.94 2.38	901 969 1036	1.95 2.39 2.88	939 1005 1072	2.27 2.75 3.29	974 1038 1104	2.59 3.09 3.67	1008 1070 1134	2.92 3.45 4.05	1041 1101 1163	3.27 3.81 4.43	1105 1161 1220	4.00 4.58 5.24	1167 1219 1274	4.79 5.40 6.09	1227 1276 1328	5.61 6.26 6.99	1285 1331 1380	6.48 7.16 7.92
10242 10974 11706	1400 1500 1600	1057 1127 1198	2.89 3.49 4.17	1103 1169 1236	3.44 4.06 4.76	1139 1207 1274	3.91 4.60 5.36	1170 1237 1305	4.33 5.06 5.88	1199 1265 1332	4.73 5.50 6.35	1227 1291 1357	5.145.936.82	1280 1342 1406	5.98 6.82 7.75	1332 1391 1453	6.877.748.71	1383 1440 1498	7.808.709.71	1432 1487 1543	8.77 9.70 10.74
12437 13169	1700 1800	1268 1338	4.93 5.76	1303 1371	5.52 6.38	1341 1407	6.20 7.11	1372 1439	6.78 7.76	1399 1466	7.30 8.34	1424 1491	7.808.88	1470 1536	8.78 9.92	1515 1579	9.7810.97	1559 1621	10.8212.04	1602 1662	11.89 13.15
13900 14632	1900 2000	1407 1476	6.66 7.65	1439 1509	7.34 8.41	1474 1541	8.10 9.19	1506 1573	8.82 9.98	1533 1600	9.46 10.68	1558 1625	10.0511.33	1602 1669	11.16 12.52	1643 1709	12.2613.68	1684 1748	13.3814.84	1723 1785	14.53 16.03

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
7316	1000	1305	6.74	1365	7.65	1424	8.59	1482	9.56	—	—	—	—	—	—	—	—	—	—	—	—
8048	1100	1342	7.38	1398	8.32	1453	9.29	1507	10.29	1561	11.32	1614	12.39	1666	13.49	—	—	—	—	—	—
8779	1200	1384	8.09	1437	9.06	1489	10.06	1540	11.10	1590	12.16	1640	13.26	1689	14.38	1737	15.53	1786	16.71	1834	17.92
9511	1300	1431	8.89	1481	9.89	1530	10.93	1578	11.99	1625	13.09	1672	14.21	1719	15.37	1764	16.55	1810	17.75	1855	18.99
10242	1400	1480	9.77	1528	10.81	1574	11.88	1620	12.98	1665	14.11	1710	15.26	1754	16.45	1797	17.66	1841	18.89	1883	20.16
10974	1500	1533	10.74	1578	11.82	1622	12.92	1666	14.05	1709	15.22	1752	16.41	1794	17.62	1835	18.87	1876	20.14	1917	21.43
11706	1600	1587	11.82	1630	12.92	1673	14.06	1715	15.23	1756	16.43	1797	17.65	1837	18.90	1877	20.18	1916	21.48	1955	22.81
12437	1700	1644	13.00	1685	14.14	1726	15.31	1766	16.51	1806	17.74	1845	19.00	1883	20.29	1921	21.60	1959	22.94	1996	24.30
13169	1800	1702	14.29	1742	15.46	1781	16.67	1819	17.91	1857	19.17	1895	20.47	1932	21.79	1969	23.13	2005	25.51	2041	25.90
13900	1900	1762	15.70	1800	16.91	1837	18.15	1874	19.42	1911	20.72	1947	22.05	1983	23.41	2018	24.79	2053	26.19	2088	27.62
14632	2000	1823	17.24	1859	18.49	1896	19.76	1931	21.07	1967	22.40	2001	23.76	2036	25.15	2070	26.57	2104	28.01	2137	29.47
16095	2200	1948	20.71	1982	22.03	2016	23.38	2049	24.76	2082	26.16	2114	27.59	2147	29.05	2178	30.53	2210	32.04	2241	33.57
17558	2400	2077	24.75	2109	26.15	2140	27.58	2171	29.03	2202	30.50	2232	32.00	2263	33.53	2293	35.08	2322	36.66	2352	38.26
19022	2600	2208	29.37	2238	30.87	2268	32.39	2297	33.92	2326	35.47	2355	37.05	2383	38.65	2411	40.27	2439	41.91	2467	43.58
20485	2800	2341	34.62	2370	36.24	2398	37.85	2426	39.48	2453	41.11	2480	42.77	2507	44.45	—	—	—	—	—	—

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 7.854 x RPM OUTLET Diameter = 4011/16" MAX. HP = 5.177 {Area = 9.029 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 30" INLET Diameter = 4011/16" MAX. RPM{ Area = 9.029 Ft.2 CL.1 1421

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
4515 5417 6320	500 600 700	410 467 527	0.33 0.48 0.67	473 523 576	0.54 0.71 0.92	532 574 622	0.78 0.97 1.20	587 623 666	1.04 1.25 1.51	641 670 708	1.32 1.55 1.83	— 715 749	—1.88 2.18	— 804 828	— 2.58 2.92	— — 904	— — 3.72	— — —	— — —	— — —	— — —
7223 8126 9029	800 900 1000	587 648 708	0.91 1.20 1.54	633 691 751	1.20 1.53 1.93	674 729 786	1.50 1.86 2.29	714 766 820	1.82 2.21 2.66	753 801 853	2.17 2.57 3.05	790 836 885	2.54 2.96 3.46	862 902 947	3.32 3.78 4.32	931 966 1006	4.16 4.66 5.25	998 1028 1064	5.05 5.60 6.22	1064 1088 1120	6.00 6.59 7.25
9932 10835 11738	1100 1200 1300	768 828 889	1.94 2.40 2.94	811 872 932	2.40 2.95 3.56	845 905 965	2.80 3.39 4.07	877 934 994	3.20 3.82 4.53	907 963 1020	3.61 4.26 5.00	937 991 1047	4.04 4.71 5.47	995 1045 1098	4.94 5.66 6.47	1050 1097 1147	5.91 6.67 7.52	1104 1148 1195	6.93 7.73 8.62	1157 1198 1242	8.00 8.84 9.78
12641 13544 14446	1400 1500 1600	951 1014 1078	3.57 4.31 5.15	992 1053 1112	4.25 5.02 5.87	1026 1086 1146	4.83 5.68 6.62	1053 1114 1174	5.34 6.25 7.26	1079 1139 1199	5.84 6.79 7.85	1104 1162 1221	6.34 7.32 8.42	1152 1208 1265	7.39 8.42 9.57	1199 1252 1307	8.48 9.56 10.75	1244 1296 1349	9.63 10.74 11.98	1289 1338 1389	10.82 11.98 13.26
15349 16252	1700 1800	1142 1204	6.09 7.11	1173 1234	6.82 7.88	1207 1267	7.65 8.77	1235 1295	8.37 9.58	1259 1319	9.01 10.29	1281 1341	9.6310.96	1323 1382	10.84 12.24	1364 1421	12.0813.54	1403 1459	13.36 14.87	1442 1495	14.68 16.23
17155 18058	1900 2000	1267 1329	8.23 9.45	1295 1358	9.06 10.39	1327 1387	10.00 11.34	1355 1415	10.89 12.31	1380 1440	11.68 13.19	1402 1462	12.4113.98	1442 1502	13.78 15.46	1479 1538	15.1416.88	1515 1573	16.52 18.32	1551 1607	17.93 19.78

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
9029993210835	1000 1100 1200	1174 1208 1246	8.32 9.11 9.99	1228 1258 1293	9.44 10.27 11.19	1281 1308 1340	10.60 11.46 12.43	1334 1356 1386	11.80 12.70 13.70	— 1404 1431	— 13.98 15.01	— 1452 1476	— 15.2916.37	— 1499 1520	— 16.65 17.75	— — 1564	— — 19.17	— — 1607	— — 20.63	— — 1650	— — 22.12
117381264113544	1300 1400 1500	1288 1332 1379	10.97 12.06 13.26	1332 1375 1420	12.21 13.34 14.59	1377 1417 1460	13.49 14.66 15.95	1420 1458 1499	14.81 16.02 17.35	1463 1499 1538	16.16 17.41 18.79	1505 1539 1576	17.55 18.84 20.26	1547 1578 1614	18.97 20.30 21.76	1588 1618 1652	20.43 21.80 23.29	1629 1656 1689	21.9223.33 24.86	1670 1695 1725	23.44 24.89 26.46
144461534916252	1600 1700 1800	1428 1479 1532	14.59 16.05 17.64	1467 1517 1568	15.9517.4519.09	1506 1553 1603	17.36 18.90 20.58	1543 1589 1637	18.8020.3922.11	1580 1625 1672	20.28 21.91 23.67	1617 1660 1705	21.7923.46 25.27	1653 1695 1739	23.3425.05 26.90	1689 1729 1772	24.91 26.67 28.56	1724 1763 1804	26.5228.32 30.25	1759 1797 1837	28.16 30.00 31.97
17155 18058 19864	1900 2000 2200	1586 1640 1753	19.3921.2825.57	1620 1673 1784	20.88 22.82 27.20	1654 1706 1814	22.41 24.40 28.87	1687 1738 1844	23.98 26.01 30.56	1720 1770 1874	25.59 27.66 32.30	1753 1801 1903	27.2329.3434.06	1785 1832 1932	28.9031.0535.86	1817 1863 1961	30.60 32.80 37.69	1848 1893 1989	32.3434.5839.55	1879 1923 2017	34.10 36.38 41.44
21670 23475 25281	2400 2600 2800	1869 1987 2107	30.5536.2642.74	1898 2014 2133	32.28 38.12 44.74	1926 2041 2158	34.05 39.99 46.73	1954 2067 2183	35.84 41.88 48.74	1982 2093 2208	37.66 43.79 50.76	2009 2119 2232	39.5145.7452.80	2036 2145 2256	41.4047.7154.87	— 2063 2170	— 43.31 49.72	— 2090 2195	— 45.2651.75	— 2116 2220	— 47.23 53.81

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 8.639 x RPM OUTLET Diameter = 443/4" MAX. HP = 8.337{Area = 10.922 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 33" INLET Diameter = 443/4" MAX. RPM{ Area = 10.922 Ft.2 CL.1 1292

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
5461 6553 7645	500 600 700	373 425 479	0.40 0.58 0.81	430 475 524	0.65 0.86 1.12	483 522 566	0.94 1.17 1.46	534 566 606	1.26 1.51 1.82	582 609 644	1.60 1.88 2.22	— 650 681	— 2.27 2.63	— 731 753	— 3.12 3.53	— — 822	— — 4.50	— — —	— — —	— — —	— — —
8738 9830 10922	800 900 1000	534 589 643	1.10 1.45 1.86	575 628 683	1.45 1.85 2.34	613 663 715	1.81 2.25 2.77	649 696 746	2.21 2.67 3.22	684 728 775	2.63 3.11 3.69	718 760 804	3.07 3.58 4.18	784 820 861	4.01 4.58 5.23	847 878 915	5.03 5.64 6.35	908 934 967	6.11 6.77 7.53	967 989 1018	7.26 7.97 8.77
12014 13106 14199	1100 1200 1300	698 753 808	2.34 2.91 3.56	737 793 847	2.91 3.56 4.31	768 822 877	3.39 4.10 4.92	797 850 903	3.87 4.62 5.48	825 875 928	4.37 5.15 6.05	852 901 952	4.88 5.70 6.62	904 950 998	5.98 6.84 7.83	955 998 1043	7.15 8.07 9.10	1004 1044 1086	8.39 9.35 10.43	1051 1089 1129	9.68 10.69 11.83
15291 1638317475	1400 1500 1600	865 922 980	4.32 5.21 6.23	902 957 1011	5.14 6.07 7.10	932 987 1042	5.84 6.87 8.01	958 1012 1067	6.46 7.568.78	981 1035 1090	7.07 8.219.49	1004 1057 1110	7.68 8.8610.18	1047 1098 1150	8.94 10.18 11.57	1090 1138 1188	10.26 11.56 13.01	1131 1178 1226	11.65 13.0014.50	1172 1216 1263	13.09 14.50 16.05
18567 19660	1700 1800	1038 1095	7.368.61	1066 1121	8.25 9.54	1097 1151	9.25 10.62	1122 1177	10.12 11.59	1144 1199	10.90 12.45	1165 1220	11.65 13.26	1203 1257	13.12 14.82	1240 1292	14.6116.38	1275 1326	16.16 17.99	1310 1360	17.76 19.64
20752 21844	1900 2000	1152 1208	9.9511.43	1178 1234	10.97 12.57	1206 1261	12.10 13.72	1232 1287	13.18 14.90	1255 1309	14.14 15.96	1274 1329	15.02 16.92	1311 1365	16.68 18.70	1345 1398	18.3220.43	1378 1430	19.99 22.17	1410 1461	21.70 23.94

VOL.	OUTLET VEL.	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
CFM	FPM	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
10922	1000	1068	10.07	1117	11.42	1165	12.83	1212	14.28	—	—	—	—	—	—	—	—	—	—	—	—
12014	1100	1098	11.02	1144	12.42	1189	13.87	1233	15.37	1277	16.91	1320	18.51	1363	20.15	—	—	—	—	—	—
13106	1200	1133	12.09	1176	13.54	1218	15.04	1260	16.58	1301	18.17	1341	19.80	1382	21.48	1422	23.20	1461	24.96	1500	26.77
14199	1300	1171	13.28	1211	14.78	1251	16.32	1291	17.92	1330	19.55	1368	21.23	1406	22.95	1444	24.72	1481	26.52	1518	28.36
15291	1400	1211	14.59	1250	16.14	1288	17.74	1326	19.38	1362	21.07	1399	22.80	1435	24.57	1471	26.38	1506	28.23	1541	30.11
16383	1500	1254	16.05	1291	17.65	1327	19.30	1363	20.99	1398	22.73	1433	24.51	1467	26.33	1501	28.19	1535	30.08	1568	32.01
17475	1600	1299	17.65	1334	19.30	1369	21.01	1403	22.75	1437	24.54	1470	26.37	1503	28.24	1535	30.15	1568	32.09	1599	34.07
18567	1700	1345	19.41	1379	21.12	1412	22.87	1445	24.67	1477	26.51	1509	28.39	1541	30.31	1572	32.27	1603	34.26	1633	36.30
19660	1800	1393	21.35	1425	23.10	1457	24.90	1489	26.75	1520	28.64	1550	30.58	1581	32.55	1611	34.56	1640	36.61	1670	38.69
20752	1900	1441	23.46	1473	25.26	1503	27.12	1534	29.02	1564	30.96	1593	32.94	1622	34.97	1651	37.03	1680	39.13	1708	41.26
21844	2000	1491	25.75	1521	27.61	1551	29.52	1580	31.47	1609	33.46	1638	35.50	1666	37.57	1694	39.69	1721	41.84	1749	44.02
24028	2200	1594	30.94	1622	32.91	1649	34.93	1676	36.98	1703	39.08	1730	41.22	1756	43.39	1782	45.61	1808	47.86	1834	50.15
26213	2400	1699	36.97	1725	39.06	1751	41.20	1776	43.36	1802	45.57	1827	47.81	1851	50.09	1876	52.41	1900	54.76	1924	57.15
28397	2600	1806	43.88	1831	46.12	1855	48.38	1879	50.67	1903	52.99	1927	55.34	1950	57.73	1973	60.16	1996	62.61	2018	65.11
30582	2800	1915	51.71	1939	54.13	1962	56.54	1985	58.97	2007	61.42	2029	63.89	2051	66.39	—	—	—	—	—	—

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 9.556 x RPM OUTLET Diameter = 491/2" MAX. HP = 12.54 {Area = 13.4 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 361/2" INLET Diameter = 491/2" MAX. RPM{ Area = 13.4 Ft.2 CL.1 1195

Minimum horsepower required to start fan — 11/2 HP

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
6700 8040 9380	500 600 700	344 393 443	0.47 0.67 0.93	395 437 483	0.76 1.00 1.31	443 479 520	1.08 1.36 1.70	489 519 555	1.43 1.74 2.12	532 558 590	1.79 2.15 2.57	574 595 624	2.17 2.57 3.03	667 689 —	3.45 3.99 —	751 — —	5.01 — —	811 — —	6.08 — —	— — —	— — —
10720 12060 13400	800 900 1000	493 544 596	1.24 1.62 2.07	532 582 632	1.69 2.15 2.68	565 612 661	2.12 2.63 3.23	597 641 688	2.58 3.12 3.77	628 669 714	3.06 3.64 4.32	659 697 739	3.56 4.17 4.89	718 752 790	4.61 5.30 6.09	775 805 838	5.71 6.48 7.35	830 856 886	6.86 7.71 8.66	883 905 932	8.05 8.99 10.02
14740 16080 17420	1100 1200 1300	648 701 754	2.62 3.27 4.02	682 733 783	3.29 4.00 4.80	711 761 812	3.93 4.72 5.60	737 786 836	5.42 5.38 6.35	761 809 858	5.11 6.03 7.06	784 831 879	5.72 6.67 7.75	830 874 919	6.99 8.01 9.17	876 916 959	8.32 9.41 10.64	920 957 997	9.71 10.87 12.17	963 998 1035	11.15 12.39 13.76
18760 20100 21440	1400 1500 1600	806 859 912	4.86 5.81 6.91	835 887 940	5.72 6.77 7.97	862 913 964	6.59 7.69 8.92	886 936 987	7.42 8.61 9.91	908 958 1008	8.21 9.48 10.87	928 978 1028	8.96 10.31 11.78	966 1015 1064	10.47 11.92 13.52	1003 1050 1097	12.01 13.54 15.24	1040 1084 1130	13.61 15.22 16.99	1075 1118 1162	15.27 16.94 18.78
22780 24120	1700 1800	967 1023	8.20 9.69	993 1046	9.30 10.77	1015 1067	10.29 11.83	1037 1088	11.34 12.92	1059 1109	12.39 14.04	1078 1128	13.39 15.13	1113 1163	15.28 17.18	1146 1195	17.10 19.13	1177 1225	18.93 21.06	1207 1254	20.80 23.01
25460 26800	1900 2000	1078 1130	11.3212.93	1099 1151	12.38 14.12	1120 1173	13.54 15.42	1140 1191	14.66 16.58	1160 1210	15.84 17.80	1179 1229	17.01 19.05	1213 1263	19.24 21.45	1244 1294	21.33 23.70	1273 1323	23.37 25.87	1301 1350	25.41 28.02

VOL. CFM	OUTLET VEL. FPM	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
12060 1340014740	900 1000 1100	953 977 1006	10.30 11.41 12.62	1000 1022 1047	11.65 12.85 14.14	1046 1065 1088	13.04 14.32 15.69	1107 1128 —	15.82 17.27 —	1148 1167 —	17.35 18.89 —	1206 — —	20.54 — —	1244 ——	22.21 — —	1281 — —	23.92 — —	— — —	— — —	— — —	— — —
1608017420 18760	1200 1300 1400	1038 1073 1111	13.95 15.3916.98	1077 1110 1146	15.54 17.07 18.73	1116 1147 1181	17.18 18.78 20.52	1154 1183 1215	18.84 20.53 22.35	1191 1218 1248	20.54 22.31 24.21	1227 1253 1282	22.27 24.12 26.10	1263 1287 1314	24.03 25.96 28.03	1299 1321 1347	25.81 27.83 29.98	1334 1354 1379	27.62 29.72 31.95	1368 1387 1410	29.46 31.64 33.96
20100 21440 22780	1500 1600 1700	1151 1193 1237	18.7220.6322.72	1184 1225 1267	20.54 22.52 24.68	1217 1256 1296	22.41 24.46 26.69	1250 1287 1326	24.31 26.44 28.74	1282 1317 1355	26.25 28.4630.83	1313 1347 1384	28.23 30.51 32.95	1345 1377 1412	30.23 32.59 35.11	1375 1407 1441	32.26 34.70 37.31	1406 1436 1469	34.32 36.84 39.53	1436 1465 1497	36.41 39.01 41.77
24120 25460 26800	1800 1900 2000	1282 1329 1376	25.0027.4830.17	1311 1356 1402	27.03 29.58 32.35	1339 1383 1428	29.11 31.73 34.57	1367 1410 1454	31.23 33.92 36.82	1395 1436 1479	33.3936.1539.12	1422 1462 1504	35.59 38.42 41.46	1450 1489 1529	37.82 40.72 43.84	1477 1515 1554	40.0943.0646.25	1504 1540 1579	42.39 45.44 48.69	1530 1566 1604	44.71 47.84 51.17
29480 32160	2200 2400	1473 1572	36.1843.05	1498 1596	38.54 45.63	1522 1618	40.92 48.20	1545 1640	43.32 50.78	1568 1662	45.7653.38	1592 1684	48.24 56.00	1615 1705	50.75 58.66	1638 1726	53.3061.35	1661 1748	55.89 64.07	1684 1769	58.50 66.83
34840 37520	2600 2800	1672 1772	50.7859.37	1695 1795	53.64 62.56	1717 1816	56.45 65.66	1738 1837	59.24 68.70	1758 —	62.02—	1779 —	54.82 —	1799 —	67.63 —	1819 —	70.47—	1839 —	73.33 —	— —	— —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 10.54 x RPM OUTLET Diameter = 547/16" MAX. HP = 20.45{Area = 16.163 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 401/4" INLET Diameter = 547/16" MAX. RPM{ Area = 16.163 Ft.2 CL.1 1083

Minimum horsepower required to start fan — 11/2 HP

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
8082 9698 11314	500 600 700	312 356 402	0.57 0.82 1.13	358 396 438	0.93 1.22 1.59	402 434 471	1.32 1.65 2.07	443 471 504	1.73 2.12 2.58	483 506 535	2.18 2.61 3.12	521 540 566	2.64 3.12 3.68	— 605 625	— 4.20 4.86	— — 681	— — 6.10	— — 735	— — 7.40	— — —	— — —
12930 14547 16163	800 900 1000	447 493 540	1.51 1.96 2.52	482 527 573	2.06 2.61 3.26	512 555 600	2.58 3.20 3.93	541 581 624	3.14 3.80 4.59	569 607 647	3.72 4.42 5.25	597 632 671	4.33 5.08 5.95	651 682 716	5.60 6.44 7.40	703 730 760	6.94 7.88 8.93	753 776 803	8.34 9.38 10.53	801 821 845	9.79 10.93 12.18
17779 19396 21012	1100 1200 1300	588 636 684	3.19 3.98 4.89	618 664 710	4.01 4.86 5.83	645 690 736	4.78 5.73 6.81	668 713 758	5.50 6.54 7.72	690 734 778	6.22 7.33 8.58	711 754 797	6.96 8.11 9.43	753 792 834	8.49 9.74 11.15	794 831 869	10.12 11.44 12.94	834 868 904	11.81 13.22 14.80	874905 939	13.55 15.06 16.73
22628 24245 25861	1400 1500 1600	731 779 827	5.91 7.07 8.40	757 805 853	6.95 8.24 9.69	782 828 874	8.01 9.35 10.84	804 849 895	9.03 10.47 12.05	823 869 914	9.98 11.53 13.22	842 887 932	10.90 12.53 14.33	876 920 965	12.73 14.49 16.44	910 952 995	14.61 16.47 18.53	943 983 1024	16.56 18.50 20.65	975 1013 1053	18.57 20.60 22.84
2747729093	1700 1800	877 927	9.97 11.79	901 949	11.31 13.10	921 968	12.52 14.38	941 987	13.80 15.71	960 1006	15.07 17.08	978 1023	16.2818.40	1010 1055	18.5820.89	1039 1083	20.79 23.26	1067 1111	23.02 25.61	1095 1137	25.29 27.98
30710 32326	1900 2000	977 1024	13.76 15.72	996 1044	15.05 17.17	1016 1064	16.4618.75	1033 1080	17.83 20.16	1052 1098	19.26 21.65	1069 1115	20.69 23.16	1100 1146	23.39 26.08	1128 1174	25.94 28.82	1155 1199	28.4231.46	1180 1224	30.90 34.07

VOL. CFM	OUTLET VEL. FPM	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
14547 1616317779	900 1000 1100	865 886 912	12.53 13.88 15.35	907 926 950	14.17 15.62 17.19	949 965 987	15.86 17.41 19.08	1004 1023	19.23 21.01	1041 1058	21.10 22.97	1093	24.97	1128	27.01	1161	29.08
193962101222628	1200 1300 1400	941 973 1007	16.96 18.72 20.65	977 1007 1039	18.90 20.76 22.78	1012 1040 1071	20.89 22.84 24.96	1046 1072 1102	22.9124.9727.18	1080 1104 1132	24.9827.1329.44	1113 1136 1162	27.0829.3331.74	1146 1167 1192	29.2231.5734.08	1178 1198 1221	31.39 33.84 36.45	1209 1228 1250	33.59 36.14 38.86	1241 1258 1279	35.83 38.48 41.29
242452586127477	1500 1600 1700	1044 1082 1122	22.76 25.08 27.62	1074 1111 1149	24.9827.3930.01	1104 1139 1176	27.2529.7432.45	1133 1167 1202	29.57 32.15 34.95	1162 1194 1229	31.93 34.60 37.49	1191 1222 1255	34.3337.10 40.07	1219 1249 1281	36.7639.63 42.70	1247 1276 1307	39.23 42.20 45.36	1275 1302 1332	41.74 44.80 48.06	1302 1329 1357	44.27 47.44 50.80
290933071032326	1800 1900 2000	1163 1205 1248	30.40 33.42 36.68	1189 1230 1272	32.8735.9739.34	1214 1254 1295	35.3938.5842.03	1240 1278 1318	37.97 41.24 44.78	1265 1302 1341	40.60 43.96 47.57	1290 1326 1364	43.27 46.72 50.42	1315 1350 1387	45.99 49.52 53.31	1339 1374 1409	48.7552.3756.24	1364 1397 1432	51.5455.2559.21	1388 1420 1454	54.37 58.17 62.23
3555938791	2200 2400	1336 1426	44.00 52.35	1358 1447	46.8755.49	1380 1467	49.7658.62	1401 1487	52.68 61.75	1422 1507	55.65 64.91	1443 1527	58.66 68.10	1464 1546	61.71 71.33	1485 1566	64.8174.60	1506 1585	67.9677.91	1527 1604	71.14 81.26
4202445256	2600 2800	1516 1607	61.75 72.20	1537 1628	65.2376.07	1557 1647	68.6579.84	1576 1665	72.04 83.54	1594	75.42	1613	78.82	1631	82.24	1649	85.69	1667	89.18

TIP SPEED (FPM) = 11.65 x RPM OUTLET Diameter = 601/2" MAX. HP = 33.78 {Area = 19.963 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 441/2" INLET Diameter = 601/2" MAX. RPM{ Area = 19.963 Ft.2 CL.1 980

Minimum horsepower required to start fan — 11/2 HP

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
9982 11978 13974	500 600 700	282 322 363	0.70 1.00 1.38	324 358 396	1.13 1.49 1.95	363 393 426	1.61 2.02 2.53	401 426 456	2.12 2.59 3.15	437 458 484	2.66 3.19 3.81	471 488 512	3.22 3.82 4.50	547 565 —	5.13 5.94 —	616 — —	7.45 — —	665 — —	9.04 — —	— — —	— — —
15970 17967 19963	800 900 1000	405 446 489	1.84 2.40 3.08	436 477 518	2.51 3.19 3.99	463 502 542	3.16 3.91 4.81	489 526 564	3.83 4.64 5.61	515 549 586	4.54 5.41 6.42	540 572 607	5.29 6.20 7.27	589 617 648	6.85 7.88 9.05	636 660 688	8.48 9.63 10.92	681 702 727	10.19 11.47 12.87	725 743 765	11.97 13.36 14.89
21959 23956 25952	1100 1200 1300	532 575 618	3.90 4.87 5.98	559 601 643	4.90 5.94 7.13	583 624 666	5.84 7.01 8.32	604 645 686	6.72 8.00 9.44	624 664 704	7.60 8.96 10.49	643 682 721	8.50 9.92 11.52	681 717 754	10.38 11.90 13.63	718 751 786	12.37 13.99 15.81	755 785 818	14.43 16.16 18.09	790 819 849	16.57 18.41 20.45
27948 29944 31941	1400 1500 1600	661 704 748	7.23 8.64 10.27	685 728 771	8.50 10.07 11.84	707 748 790	9.79 11.42 13.25	727 768 809	11.03 12.79 14.73	745 786 827	12.20 14.09 16.16	761 802 843	13.32 15.32 17.51	793 832 872	15.56 17.72 20.10	823 861 900	17.86 20.13 22.65	853 889 926	20.24 22.62 25.25	882 917 953	22.70 25.18 27.92
33937 35933	1700 1800	793 839	12.19 14.41	815 858	13.82 16.01	833 875	15.30 17.58	851 893	16.86 19.21	868 910	18.41 20.87	884 925	19.90 22.49	913 954	22.70 25.54	940 980	25.42 28.44	965 1004	28.14 31.30	990 1028	30.92 34.20
37930 39926	1900 2000	884 926	16.82 19.21	901 944	18.39 20.98	919 962	20.12 22.91	935 977	21.79 24.64	951 993	23.55 26.46	967 1008	25.29 28.31	995 1036	28.60 31.88	1021 1062	31.71 35.23	1044 1085	34.74 38.46	1067 1107	37.77 41.64

VOL. CFM	OUTLET VEL. FPM	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
17967 1996321959	900 1000 1100	782 802 825	15.31 16.96 18.76	820 838 859	17.32 19.10 21.02	858 873 893	19.39 21.28 23.32	— 908 925	— 23.51 25.68	— 942 957	— 25.79 28.08	— — 989	— — 30.53	— — 1020	— — 33.02	— — 1051	— — 35.55	— — —	— — —	— — —	— — —
239562595227948	1200 1300 1400	851 880 911	20.73 22.88 25.24	884 911 940	23.10 25.37 27.84	915 941 968	25.53 27.92 30.50	946 970 996	28.01 30.52 33.22	977 999 1024	30.53 33.1635.99	1007 1028 1051	33.10 35.85 38.80	1036 1056 1078	35.71 38.59 41.66	1065 1083 1105	38.37 41.36 44.56	1094 1111 1131	41.06 44.18 47.50	1122 1138 1157	43.80 47.04 50.47
2994431941 33937	1500 1600 1700	944 979 1015	27.82 30.6633.76	971 1004 1039	30.53 33.4836.68	998 1030 1063	33.3136.36 39.67	1025 1055 1087	36.14 39.30 42.72	1051 1080 1111	39.03 42.30 45.82	1077 1105 1135	41.96 45.34 48.98	1103 1130 1159	44.94 48.44 52.19	1128 1154 1182	47.96 51.58 55.45	1153 1178 1205	51.02 54.76 58.75	1178 1202 1228	54.12 57.98 62.09
35933 37930 39926	1800 1900 2000	1052 1090 1129	37.1640.8444.84	1075 1112 1150	40.1843.9748.08	1098 1134 1171	43.26 47.16 51.38	1121 1156 1192	46.42 50.41 54.73	1144 1178 1213	49.63 53.73 58.15	1167 1200 1234	52.90 57.10 61.63	1189 1221 1254	56.22 60.53 65.16	1211 1242 1275	59.59 64.01 68.74	1233 1264 1295	63.00 67.54 72.38	1255 1285 1315	66.46 71.11 76.06
43919 47911	2200 2400	1208 1290	53.7863.99	1228 1309	57.2967.83	1248 1327	60.82 71.65	1267 1345	64.39 75.48	1286 1363	68.02 79.34	1306 1381	71.70 83.24	1325 1399	75.43 87.19	1343 1416	79.23 91.18	1362 1433	83.07 95.23	1381 1451	86.96 99.33
51904 55896	2600 2800	1372 1454	75.4888.25	1390 1472	79.7392.98	1408 1490	83.91 97.59	1425 1506	88.05 102.12	— 1442	— 92.19	— 1459	— 96.34	— 1475	— 100.53	— 1492	— 104.74	— 1508	— 109.00	— —	— —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

TIP SPEED (FPM) = 12.83 x RPM OUTLET Diameter = 667/16" MAX. HP = 54.68{Area = 24.074 Ft.2 ^{(1000 )}

WHEEL DIAMETER = 49" INLET Diameter = 667/16" MAX. RPM{ Area = 24.074 Ft.2 CL.1 890

Minimum horsepower required to start fan — 5 HP

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.5 S.P.		.75 S.P.		1 S.P.		1.25 S.P.		1.5 S.P.		2 S.P.		2.5 S.P.		3 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
12037 14444 16852	500 600 700	256 293 330	0.85 1.21 1.67	294 325 360	1.37 1.80 2.36	330 357 387	1.95 2.45 3.07	364 387 414	2.57 3.14 3.82	397 416 440	3.22 3.87 4.62	428 443 465	3.91 4.63 5.45	— 497 513	— 6.22 7.20	— — 560	— — 9.04	— — 604	— — 10.96	— — —	— — —
19259 21667 24074	800 900 1000	368 405 444	2.23 2.91 3.73	396 433 471	3.05 3.87 4.83	421 456 493	3.83 4.74 5.83	444 478 513	4.65 5.63 6.80	468 499 532	5.51 6.56 7.79	491 519 551	6.41 7.52 8.81	535 560 588	8.30 9.55 10.97	577 599 624	10.29 11.68 13.24	618 637 660	12.36 13.90 15.61	658 674 694	14.51 16.20 18.05
26481 28889 31296	1100 1200 1300	483 522 562	4.73 5.90 7.25	508 546 584	5.94 7.20 8.65	530 567 604	7.08 8.50 10.09	549 586 623	8.15 9.70 11.44	567 603 639	9.22 10.86 12.72	584 619 655	10.31 12.02 13.97	619 651 685	12.59 14.43 16.52	652 682 714	14.99 16.96 19.17	685 713 743	17.50 19.60 21.93	718 743 771	20.09 22.33 24.79
33704 36111 38518	1400 1500 1600	601 640 679	8.76 10.48 12.46	622 661 700	10.31 12.21 14.36	642 680 718	11.87 13.85 16.07	660 698 735	13.38 15.51 17.86	676 714 751	14.79 17.08 19.59	691 728 766	16.16 18.58 21.23	720 756 792	18.87 21.48 24.37	747 782 817	21.65 24.41 27.46	774 807 841	24.54 27.42 30.61	801 833 865	27.52 30.53 33.85
40926 43333	1700 1800	720 762	14.78 17.47	740 779	16.76 19.41	756 795	18.55 21.32	773 811	20.44 23.29	789 826	22.33 25.31	803 840	24.13 27.27	829 866	27.53 30.96	853 890	30.82 34.48	876 912	34.12 37.96	899 934	37.49 41.47
45741 48148	1900 2000	803 841	20.40 23.29	818 857	22.30 25.44	834 874	24.39 27.78	849 888	26.42 29.87	864 902	28.55 32.08	878 916	30.66 34.33	904 941	34.67 38.66	927 964	38.45 42.72	949 985	42.12 46.63	969 1006	45.80 50.49

VOL. CFM	OUTLET VEL. FPM	4 S.P.		4.5 S.P.		5 S.P.		5.5 S.P.		6 S.P.		6.5 S.P.		7 S.P.		7.5 S.P.		8 S.P.		8.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
21667 24074 26481	900 1000 1100	710 728 749	18.57 20.57 22.75	745 761 780	21.00 23.15 25.48	779 793 811	23.50 25.80 28.28	— 824 840	— 28.51 31.13	— 855 869	— 31.27 34.04	— — 898	— — 37.01	— — 926	— — 40.03	— — 954	— — 43.10	— — —	— — —	— — —	— — —
28889 31296 33704	1200 1300 1400	773 799 828	25.13 27.74 30.60	802 827 854	28.01 30.76 33.76	831 854 879	30.96 33.85 36.98	859 881 905	33.96 37.00 40.28	887 907 930	37.02 40.21 43.63	914 933 955	40.13 43.47 47.04	941 959 979	43.30 46.79 50.51	967 984 1003	46.52 50.15 54.02	994 1009 1027	49.78 53.57 57.59	1019 1033 1050	53.10 57.03 61.20
36111 38518 40926	1500 1600 1700	857 889 921	33.73 37.17 40.94	882 912 944	37.02 40.59 44.48	907 935 966	40.39 44.08 48.10	931 958 988	43.82 47.65 51.79	955 981 1009	47.32 51.28 55.56	978 1004 1031	50.87 54.98 59.39	1002 1026 1052	54.48 58.73 63.28	1025 1048 1073	58.15 62.54 67.23	1047 1070 1094	61.86 66.40 71.23	1070 1091 1115	65.62 70.30 75.28
43333 45741 48148	1800 1900 2000	955 990 1025	45.05 49.52 54.37	976 1010 1045	48.71 53.31 58.30	997 1030 1064	52.46 57.18 62.29	1018 1050 1083	56.28 61.13 66.36	1039 1070 1102	60.17 65.15 70.51	1059 1089 1120	64.13 69.24 74.72	1080 1109 1139	68.16 73.39 79.00	1100 1128 1158	72.25 77.61 83.35	1120 1148 1176	76.39 81.89 87.76	1140 1167 1195	80.58 86.22 92.22
52963 57778	2200 2400	1098 1171	65.21 77.59	1116 1188	69.46 82.24	1133 1205	73.74 86.88	1151 1222	78.07 91.52	1168 1238	82.47 96.20	1186 1254	86.93 100.93	1203 1270	91.46 105.71	1220 1286	96.06 110.56	1237 1302	100.72 115.47	1254 1318	105.44 120.43
62592 67407	2600 2800	1246 1320	91.52 107.01	1262 1337	96.67 112.74	1279 1353	101.74 118.33	1294 1368	106.76 123.82	— 1310	— 111.78	— 1325	— 116.82	— 1340	— 121.89	— 1355	— 127.00	— —	— —	— —	— —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Dimensions in inches Certified dimension prints furnished upon request.

FAN SIZE	A	B	C	D	E	F	G	H	J	K	L	M	N	P	Q	R	S	T	V	W	Y	Z	AA	AB	AC	AD	BC1	BC2	ShafClass I	t Dia. Class II	O.D.
C1050	141/8	191/2	161/8	14	93/4	19	25/8	133/4	121/4	193/4	9/16	4	5/16	8	1/2-13	4	715/16	173/8	101/2	41/2	9/16	4	115/8	5	61/2	131/2	151/8	203/8	1	1	143/8
C1220	169/16	225/8	189/16	17	111/8	221/8	25/8	167/8	151/4	225/8	9/16	4	5/16	8	1/2-13	4	91/8	193/4	135/8	41/2	9/16	4	12	43/4	8	165/8	179/16	2211/16	1	13/16	1613/16
C1350	183/8	25	203/8	18	12	241/2	25/8	191/4	161/4	231/2	9/16	4	5/16	8	1/2-13	4	101/16	215/8	16	41/2	9/16	4	141/4	57/8	8	19	193/8	247/16	1	13/16	185/8
C1500	205/16	275/8	225/16	20	123/4	271/8	25/8	217/8	181/4	241/2	9/16	4	5/16	8	1/2-13	4	11	231/2	185/8	41/2	9/16	4	17	71/4	81/2	215/8	215/16	261/2	1	13/16	209/16
C1650	225/16	303/8	245/16	22	14	297/8	25/8	245/8	201/4	271/2	9/16	4	5/16	12	1/2-13	4	12	251/2	215/8	41/2	9/16	4	181/2	8	91/4	243/8	235/16	289/16	1	17/16	229/16
C1820	2411/16	333/8	2611/16	25	151/8	327/8	25/8	275/8	231/4	291/2	9/16	4	5/16	12	1/2-13	4	133/16	277/8	243/8	41/2	9/16	4	20	87/8	10	273/8	2511/16	31	13/16	17/16	2415/16
C2000	275/16	365/8	2913/16	27	161/4	361/8	25/8	307/8	251/4	301/4	9/16	6	5/16	12	1/2-13	4	149/16	305/8	275/8	41/2	9/16	4	22	93/4	107/8	305/8	289/16	333/8	13/16	17/16	279/16
C2220	305/16	401/2	3213/16	30	181/8	40	31/4	331/2	281/4	311/4	9/16	6	5/16	12	1/2-13	4	161/16	335/8	311/2	41/2	9/16	4	241/4	107/8	121/8	341/2	319/16	379/16	13/16	111/16	309/16
C2450	331/4	445/8	353/4	33	193/4	441/8	33/4	365/8	311/4	327/8	7/8	6	3/8	16	1/2-13	4	173/4	371/2	345/8	5	11/16	4	261/2	113/4	131/4	385/8	341/2	401/2	17/16	111/16	331/2
C2700	365/8	48	391/8	37	211/2	475/8	33/4	401/8	351/4	341/2	7/8	6	3/8	16	1/2-13	4	197/16	407/8	38	5	11/16	4	291/2	131/4	143/4	42	377/8	437/8	111/16	115/16	367/8
C3000	4011/16	533/8	433/16	41	231/2	53	33/4	451/2	391/4	38	7/8	6	3/8	16	1/2-13	6	211/2	45	433/8	5	11/16	6	32	141/2	16	473/8	4115/16	4715/16	111/16	115/16	4015/16
C3300	443/4	583/8	49	45	26	581/4	33/4	503/4	431/4	44	7/8	6	7/16	8	1/2-13	6	233/4	50	485/8	5	11/16	6	343/4	157/8	173/8	525/8	471/4	52	115/16	23/16	453/8
C3650	491/2	647/8	533/4	50	283/8	641/2	33/4	57	481/4	463/8	7/8	4	7/16	8	1/2-13	4	261/8	543/4	547/8	5	11/16	4	381/4	175/8	191/8	587/8	52	561/2	23/16	23/16	501/8
C4020	547/16	711/2	593/4	55	31	71	41/4	621/2	521/2	49	7/8	4	7/16	8	5/8-11	4	285/8	593/4	601/2	51/2	7/8	4	42	191/2	21	651/2	571/2	621/4	23/16	27/16	551/8
C4450	601/2	791/8	653/4	61	337/8	785/8	41/4	701/8	581/2	517/8	7/8	4	9/16	16	5/8-11	4	315/8	653/4	681/8	51/2	7/8	4	453/4	211/2	227/8	731/8	631/2	701/2	23/16	211/16	611/8
C4900	667/16	871/8	7113/16	67	37	865/8	41/4	781/8	641/2	54	7/8	4	9/16	16	5/8-11	4	3411/16	717/8	761/8	51/2	7/8	6	50	235/8	25	811/8	699/16	*	27/16	215/16	673/16

Motor Positions Shown Are Viewed From Discharge End

Dimensions in inches Certified dimension prints furnished upon request.

FAN SIZE	A	B	C	D	E	F	G	H	J	L	M	N	P	Q* MAX	X	AE	BC	Class I Shaft	Dia. Class II	MinFra	Motor me K	Max Fra	Motor me K
C1050	141/8	191/2	161/8	14	93/4	19	25/8	133/4	121/4	9/16	4	5/16	8	27	3	37/8 x 6	151/8	1	1	48	153/8	184T	171/2
C1220	169/16	225/8	189/16	17	111/8	221/8	25/8	167/8	151/4	9/16	4	5/16	8	31	3	37/8 x 6	179/16	1	13/16	48	163/4	215T	201/2
C1350	183/8	25	203/8	18	12	241/2	25/8	191/4	161/4	9/16	4	5/16	8	32	3	37/8 x 6	193/8	1	13/16	48	171/2	215T	211/2
C1500	205/16	275/8	225/16	20	123/4	271/8	25/8	217/8	181/4	9/16	4	5/16	8	351/2	3	37/8 x 65/8	215/16	1	13/16	48	181/2	256T	231/2
C1650	225/16	303/8	245/16	22	14	297/8	25/8	245/8	201/4	9/16	4	5/16	12	361/2	31/2	47/8 x 8	235/16	1	17/16	48	191/2	256T	241/2
C1820	2411/16	333/8	2611/16	25	151/8	327/8	25/8	275/8	231/4	9/16	4	5/16	12	401/2	31/2	47/8 x 9	2511/16	13/16	17/16	48	205/8	286T	271/2
C2000	275/16	365/8	2913/16	27	161/4	361/8	25/8	307/8	251/4	9/16	6	5/16	12	413/4	31/2	47/8 x 9	289/16	13/16	17/16	48	22	286T	283/4
C2220	305/16	401/2	3213/16	30	181/8	40	31/4	331/2	281/4	9/16	6	5/16	12	43	31/2	47/8 x 10	319/16	13/16	111/16	48	233/8	286T	30
C2450	331/4	445/8	353/4	33	193/4	441/8	33/4	365/8	311/4	7/8	6	3/8	16	47	31/2	47/8 x11	341/2	17/16	111/16	48	243/4	326T	321/2
C2700	365/8	48	391/8	37	211/2	475/8	33/4	401/8	351/4	7/8	6	3/8	16	481/2	101/2	12	377/8	111/16	115/16	56	27	326T	34
C3000	4011/16	533/8	433/16	41	231/2	53	33/4	451/2	391/4	7/8	6	3/8	16	551/2	111/2	13	4115/16	111/16	115/16	182T	301/2	365T	391/2
C3300	443/4	583/8	49	45	26	581/4	33/4	503/4	431/4	7/8	6	7/16	8	571/2	121/2	14	471/4	115/16	23/16	182T	321/2	365T	411/2
C3650	491/2	647/8	533/4	50	283/8	641/2	33/4	57	481/4	7/8	4	7/16	8	621/2	14	16	52	23/16	23/16	182T	341/2	405T	45
C4020	547/16	711/2	593/4	55	31	71	41/4	621/2	521/2	7/8	4	7/16	8	66	15	17	571/2	23/16	27/16	213T	39	405T	471/2
C4450	601/2	791/8	653/4	61	337/8	785/8	41/4	701/8	581/2	7/8	4	9/16	16	69	161/2	19	631/2	23/16	211/16	213T	42	405T	501/2
C4900	667/16	871/8	7113/16	67	37	867/8	41/4	781/8	641/2	7/8	4	9/16	16	761/2	18	21	699/16	27/16	215/16	213T	443/4	445T	561/2

25

AIR TEMP. DEG. F.	0	500	1000	1500	2000	2500	3000	3500 A	4000 LTITUDE	4500 IN FEET	5000 ABOVE S	5500 EA LEVE	L	6000	6500	7000	7500	8000	8500	9000	10000
0°	0.87	0.89	0.91	0.92	0.94	0.96	0.98	0.99	1.01	1.03	1.05	1.06		1.09	1.10	1.13	1.15	1.17	1.19	1.22	1.26
40°	0.94	0.96	0.98	1.00	1.02	1.04	1.06	1.08	1.10	1.12	1.14	1.16		1.19	1.20	1.23	1.26	1.28	1.30	1.32	1.36
70°	1.00	1.02	1.04	1.06	1.08	1.10	1.12	1.14	1.16	1.18	1.20	1.22		1.25	1.27	1.30	1.32	1.35	1.37	1.40	1.45
80°	1.02	1.04	1.06	1.08	1.10	1.12	1.14	1.16	1.19	1.21	1.23	1.26		1.28	1.30	1.33	1.36	1.38	1.41	1.43	1.48
100°	1.06	1.08	1.10	1.12	1.14	1.16	1.19	1.21	1.23	1.25	1.28	1.30		1.33	1.35	1.38	1.41	1.43	1.46	1.48	1.54
120°	1.09	1.12	1.14	1.16	1.18	1.20	1.23	1.25	1.28	1.30	1.32	1.35		1.38	1.40	1.43	1.46	1.48	1.51	1.53	1.58
140°	1.13	1.15	1.18	1.20	1.22	1.25	1.27	1.29	1.32	1.34	1.37	1.40		1.42	1.45	1.48	1.51	1.54	1.57	1.58	1.65
160°	1.17	1.19	1.22	1.24	1.26	1.29	1.31	1.34	1.36	1.39	1.42	1.44		1.47	1.50	1.53	1.56	1.59	1.62	1.64	1.70
180°	1.21	1.23	1.26	1.28	1.3 0	1.33	1.36	1.38	1.41	1.43	1.46	1.49		1.52	1.55	1.58	1.61	1.64	1.67	1.70	1.75
200°	1.25	1.27	1.29	1.32	1.34	1.37	1.40	1.42	1.45	1.48	1.51	1.54		1.57	1.60	1.63	1.66	1.69	1.72	1.75	1.81
250°	1.34	1.36	1.39	1.42	1.45	1.47	1.50	1.53	1.56	1.59	1.62	1.65		1.68	1.71	1.74	1.78	1.82	1.85	1.88	1.94
300°	1.43	1.46	1.49	1.52	1.55	1.58	1.61	1.64	1.67	1.70	1.74	1.77		1.80	1.84	1.87	1.91	1.94	1.98	2.00	2.08
350°	1.53	1.56	1.59	1.62	1.65	1.68	1.72	1.75	1.78	1.81	1.85	1.88		1.92	1.96	2.00	2.04	2.07	2.11	2.14	2.22
400°	1.62	1.65	1.69	1.72	1.75	1.79	1.82	1.85	1.89	1.93	1.96	2.00		2.04	2.08	2.12	2.16	2.20	2.25	2.27	2.35

Wheel Weights and WR² in Lbs. Ft²

Note: For all type spark resistant fans, the user shall electrically ground all fan parts. Either A or B construction conforms to requirements of National Board of Fire Underwriters Pamphlet No. 91 for

FAN SIZE	WEIGHT CLA	SS I	WR2	WEIGHT CLA	SS II	WR2
C1050	12.7		0.92	15.1		0.93
C1220	20.2		1.9	24.3		2.7
C1350	23.4		2.9	28.4		3.9
C1500	27.5		4.3	33.6		5.7
C1650	35		6.9	42.3		8.3
C1820	41		10.5	49.6		12.6
C2000	56.5		17	56.4		17.4
C2220	67.5		22.9	60.3		23
C2450	80.5		38.4	77.6		34.2
C2700	93		49	92		49
C3000	111		76	111		76
C3300	132		111	132		111
C3650	198		209	198		209
C4020	247		322	280		327
C4450	298		481	332		487
C4900	430		795	430		795

Standards adopted for spark-resistant fans AMCA Standard 99-0401-86

Spark Resistant — Type C:

AMCA standards require the fan to be so constructed that a shift of the wheel or shaft will not permit two ferrous parts of the fan to rub or strike. Fans for this condition will be furnished with a non-ferrous inlet cone and rubbing plate around the shaft opening. fans handling flammable vapors. Bearings shall not be placed in the air or gas stream. A non-ferrous material shall be any material with less than 5% iron or any other material with demonstrated ability to be spark resistant.

The use of these constructions in no way implies a guarantee of safety for any level of spark resistance. Spark resistant construction does not protect against ignition of explosive gases caused by catastrophic failure or from any airstream material that may be present in a system.

Reprinted from AMCA publication 99 with the expressed written permission from the Air Movement and Control Association International, Inc., 30 West University Drive, Arlington Heights, IL 60004-1893.

CentrifanTypical Specifications Upblast Class I

FAN SIZE	A	B	C	D
C1050	345/8	193/8	22	3
C1220	393/4	241/4	25	3
C1350	431/8	261/4	26	3
C1500	463/4	283/8	28	3
C1650	501/2	30	30	3
C1820	551/2	323/8	31	4
C2000	61	351/2	36	4
C2220	667/8	383/8	40	4
C2450	73	413/8	42	4
C2700	80	45	461/2	4
C3000	87	49	501/2	4
C3300	945/8	53	541/2	4
C3650	1037/8	58	58	4
C4020	1131/2	63	63	4
C4450	1241/8	69	69	4
C4900	1345/8	78	75	4

 

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